Crossfire 800 Engine + Firecat Chassis+ Firecat 144 Skid/track= possible?

so, i have a 2009 Crossfire SnoPro 800 with a bad chassis and solid engine, a 440 Firecat SnoPro chassis with a crappy 600 engine, and i was thinking about getting a 144 skid extension and track for the firecat, and heres what i was thinking: will it work, would i have to order a pipe so the crossfire engine would work in the firecat chassis, would i have to get the secondary and primary clutches of the crossfire engine re-did, but the 144 and the 141 tracks are pretty close, would the drivers for the 128 track work with the 144 track, and would the 600 pipe work with the 800 engine if i got the 800 ecu remapped? any thoughts and critique? are there any problems i may have over looked?

I have a f6 chassis that was a parts sled I had bought last month. Would itbe easier to put it in that one?