OK, did a search and didn't find the answers.

I pulled the Compressor, Condensor and lines off my Evo IX (Base model). Will these all fit an Evo 8?

 

As far as I know... yes. I have a condenser off of an Evo 8 on my Evo 9. Fit with no issues.

The best thing to do would be to cross reference the part numbers through mitsubishiparts.whatever...

Such as here: http://www.trademotion.com/parts/200...6&section=HVAC

It does appear that there may be some slight differences in the routing across some of the years? But I do believe that the main components are similar enough to be used. YMMV.