Can you swap an A4 B6 with a B5s Transmission and Driveshaft
 

I need to know if it's possible to swap a:
2002 Audi A4 1.8T Quattro SLine 5 Speed Transmission and Driveshaft with a.....
1999 Audi A4 2.8 Quattro 6 Speed Transmission and Driveshaft????

Cab this be done? If so are there any informational posts or DIY conversion forums online that may help me achieve this and make it possible??

Any help is appreciated. Thank you.