How much harder is it converting a 1.5 to g60

Giving serious thought to selling my sportline and buying a Jetta found 1.5 auto. Really want to g60 it though just seeing how much harder it would be to convert.would use all the normal stuff like 100mm shafts g60 box etc but it's furling side of it and electrics bit unsure of would a conversion loom still be ok? Furling is it a case of lift pump and fuel pump ?