The table (now on page 170 of TO:AR, page 202 of the OG TacOps) specifically mentions "pairs" of magnetic, vibro, or "other" claws, then immediately has another line for +0.25 for "one or more heavy battle claws". I think that means if they're a pair of Heavy Vibro-Claws (or Magnetic), it's +2.25. And I think that means the theoretical maximum is 10.75:
2 for Elemental
3 for Assault Armor
1 for Burst Fire Weapon
1 for Space Ops Adaptation
1 for Magnetic Clamps
2.25 for Paired Heavy Vibro-Claws
0.25 for a Cutting Torch
0.25 for an Industrial Drill
I'm just surprised the Salvage Arm isn't mentioned in the table; I would probably give it +0.25.