i don't know if the shifter will work, shifter connects to the g27.
does that pedal adapter cable is on fanatec site? if not i'm not 100% sure it will work properly.
when my G25 finally dies, witch i dbout... i will buy Fanatec and get done with it, cause all the adapters and everything can still don't work like they should etc.
i know Fanatec is not cheap, but its a pice of art. they are one of the best wheels out there. friend of mine have Fanatec CSR Elite for Xbox and plays Forza 4, its just a masterpiece.