Hmmm... 30,000 light years is a minimum of 1,000 jumps. Do you know what portion of that distance will involve interstellar space? Stars mean using the jump sail to recharge, thus saving fuel. If it was ALL interstellar, practically the entire ship would would need to be fuel.
Per StratOps, using the power plant alone burns a base 10 burn days of fuel, less 0.5 burn day per Margin of Success to a minimum of 4 burn days. With 10 levels of skill in Piloting/Spacecraft, and 7s in REF and DEX, you could have a base -4 target, meaning a minimum MoS of 6 (or 7 burn days per jump). Throwing Natural Aptitude on top of that won't change the minimum, but it will skew the statistical burn rate down. A -4 base could also guarantee success in charging the drive in 20 hours, but that would take the full 10 burn days of fuel. Given the relative weight of consumables for the crew against the fuel, you'll want to save fuel. The fixed cost of charging the drive with fuel will drive you to the maximum possible ship weight. At the bare minimum (quick charging every time at 150 hours to maximize fuel savings), you need 6,250 days to make the journey (over 17 years one way, doubled for the round trip).
One possible fiddle is to take the "no failure" for 175 hours of quick charging to mean the minimum fuel is burned (4 burn days, or 79 tons). This increases your need for consumables (by 1,000 days per leg), but reduces the fuel requirements. Using stars to recharge for part of the journey will reduce it further.
I just ran the math for the station keeping fuel burn rate, and it's about 2 tons per day. That means refueling by grabbing icy Kuiper Belt Objects will probably be necessary.
Using fractional accounting, you can design the ship at 199,999 tons, just below the break point for tons/burn day (keeping it at 19.75 tons vice 39.52). You're going to want to do this, because every single ton counts on a mission like this. With Compact Core technology (from a later era), you might be able to design a 99,999 ton ship that could make the journey (or a 49,999 ton one with the Illegal quirk).
So anyway, at 199,999 tons:
Engine (Station Keeping): 0.2 x 0.06 x 199,999 = 2,400 tons
Fuel and Pumps: 5,000 tons, 100 tons for pumps (this enables the ship to traverse voids of almost 1,900 light years)
SI (1): 200 tons
K-F Drive (30 LY is the only thing that makes sense given the fixed fuel consumption): 189,999 tons
Sail: 40 tons
Controls: 500 tons
Crew: 85 (15 are officers) (Primitive JumpShips use WarShip crews... yikes!)
Steerage Quarters: 425 tons
Grav Deck (50m): 50 tons
Small Craft Bay: 200 tons
Additional Steerage Quarters: 25 tons
Armor: 10 tons (1 point per facing)
1,050 tons of consumables at 200 person-days per ton = 210,000 person days/90 persons = 2,333 days
That clearly won't work... if you allow modern JumpShip crewing, that cuts things down dramatically:
Engine (Station Keeping): 0.2 x 0.06 x 199,999 = 2,400 tons
Fuel and Pumps: 5,000 tons, 100 tons for pumps
SI (1): 200 tons
K-F Drive (30 LY is the only thing that makes sense given the fixed fuel consumption): 189,999 tons
Sail: 40 tons
Controls: 500 tons
Crew: 16 (3 are officers: CO, XO/Navigator, Engineer)
Steerage Quarters: 80 tons
Grav Deck (50m): 50 tons
Small Craft Bay: 200 tons
Additional Steerage Quarters: 25 tons
Armor: 10 tons (1 point per facing)
1,395 tons of consumables at 200 person-days per ton = 279,000 person-days/21 persons = 13,285 days (not quite enough)
Finally, substituting Stasis Tubes for the Small Craft crew (the ship crew is apparently necessary to operate the ship) could stretch the consumables well in excess of 17,000 days, which should be enough:
Engine (Station Keeping): 0.2 x 0.06 x 199,999 = 2,400 tons
Fuel and Pumps: 5,000 tons, 100 tons for pumps (2,531 burn days at station keeping rate)
SI (1): 200 tons
K-F Drive (30 LY is the only thing that makes sense given the fixed fuel consumption): 189,999 tons
Sail: 40 tons
Controls: 500 tons
Crew: 16 (3 are officers: CO, XO/Navigator, Engineer)
Steerage Quarters: 80 tons
Grav Deck (50m): 50 tons
Small Craft Bay: 200 tons
Stasis Tubes for Small Craft Crew: 10 tons
Armor: 10 tons (1 point per facing)
1,410 tons of consumables at 200 person-days per ton = 282,000 person-days/16 persons = 17,625 days (48 years and a bit of margin)
The margin in consumables would enable the Small Craft crew to be wakened a few times during the journey to do refueling operations (capturing an icy KBO and harvesting the water/hydrogen).
EDIT: See my next post... some accidental key combination hit post...