No not a easy job mate, even more so with robs charge cooler setup, we had to put the battery in the boot to make room for the cooler
Also had to make a custom wiring loom half G60 have golf
Change from rod to cable gear change
Change from cable clutch to hydro clutch
Mix and match engine mounts from both
Flip the rad upside down as the water pipes are on the wrong side
Plus loads of little bits of custom stuff