Why not DIY, the 100W black fins just fit (really just fit, at an angle), the 5.5AH can power it (really just barely powers it).
I just measured, its 8.1A 12.15V input with a 12V 7AH. With the OEM host of the Yao with 12V 5.5AH it is 12.08V 7.9A. So that's about 80W to the bulb too.
You can play with 100W, 75W and 55W bulbs. They are cheap, the 55W bulbs throw like crazy due to short arc length. The 100W bulbs are noticeably floodier. 2 ballasts, 2 bulbs, 1 host, everything shipped, just a wee bit below usd200.
Extra bulb/ballast can go into a Thor X Colossus.
Then you get 200W light.
If you are really handy, there are dual power ballasts as well. So basically its "the same".