I've added some stuff to the company spread sheet about how much spare ammo, armor, weapons, etc. you all have available. It comes out to around 1019 tons of supplies; which is pretty much the maximum you can squeeze into the drop ship (Union) when you take out the ASF bays. The drop ship has a company of infantry onboard for security, so they're gonna take up space and you'll also need some space for food and water. So we'll say 1020 is the maximum tonnage you can have for mech supplies; so you all have some wiggle room.
For those who don't have access to the spreadsheet, I've given a spare engine and gyro to every mech in the company. I also gave enough spare weapons to replace every weapon on every mech once. You all also have 300 tons of standard armor (total armor on mechs is 116 tons IIRC) and 100 tons of Ferro-Fibrous (which one mech has 8.5 tons of). 80 tons of standard internal structure and 20 tons of endo-steel.
For ammo, here's the break down:
LRM 20 tons
SRM 12 tons
AC20 10 tons
AC10 10 tons
AC10 (cluster) 10 tons
AC2 10 tons
MG 5 tons
30 spare single heat sinks and 20 double heat sinks. 30 jump jets for mechs less than or equal to 55 tons and 10 jump jets for mechs between 60 and 85 tons.
Feel free to talk amongst yourselves and make adjustments on the spreadsheet that is to your liking. Jeff, I didn't want to post the link to the spreadsheet without your permission. I'll let you decide if you want to message the link to the people that have recently joined.