1.8T 20v on 6n2

Right peps , my polo has got big gift as 1.8 T engine , i got complete unit with ecu bla bla bla , and before i gonna take my 1.4 16v out i wanna collect all the bits and bobs that i need for it lik gearbox and mounts , and can you guys help me whats best gearbox to use and were can i get the mounts from , and i know i will propably use mk4 golf tdi gearbox , but not 100% about the mounts were i can get them from all help apricate cheers matt