I have done many ka engine conversions you can get the mounts from a company called track designs i made my own i have also done zvh and zetec aswell all using the ka ib5 gearbox and rs turbo lsd and ka shafts, using the ka box you can keep two of the ka mounts, and rs turbo n/s engine mount modified to fit, it is better if you use efi fiesta rs turbo engine with ofab management, but you can stay erst if you want it just makes your life a little bit harder, pm me if you need anymore info!