generally 7- 7.5 et 50-55 will go under stock wings. with spacers of no more than 20mm depending on your setup, as for buying hubs why not buy some porsche swing arms, early steel ones just need the pivot bush changing and a handbrake conversion piece from vdub customs , keep the original spring plates connect up the brakelines , i just did this same conversion with 996 rear brakes , 2.5 hours from start to finish
