I highly recommend you give Andy from Autotechnica a ring 01482 353369 (based in Hull) he's done all my mods including stage 3 full engine rebuild. We start the AWD conversion on Friday when we cut the boot floor out, they're already rebuilding the S3 rear axle for me. Their pricing will put any
dealership to shame and will provide a great
service to you, good bunch of guys.
Clutch could be done within a day (just about!) We installed a Loba stage 2 clutch on mine and single mass flywheel, price was reasonable and is not too heavy, it really lightens up after a week of driving, not much worse than a standard clutch but good for 500bhp.