This is exactly what i wanted to do with my mk4. I found that a totally custom engine mount was needed or even cut the mounting off the chassis and have a new one fitted. Because i wanted power steering a zetec was really my only option. Also the rs2k lump is very heavy! Ive got a zetec with rs2k management and it did 14.8 quarter at santa pod! Plenty good enough. If you need any info pm me. But the best info is dont do any conversion! I spent thousands on mine and it didnt even sell for £2250 on ebay. My cars only done 22k since new aswel! Waste of time and money