Audi 90 Quattro 1990: Rear Shocks and New Bushes for Support Frame

[Olli]

Due to the old age OEM parts not available. Anybody know if and which 
make of conventional shocks can be installed instead of the original 
casette & insert type shocks.
Anywhere I could find replacement bushes for the entire support frame 
2+2 infront and 1 in the back? Thanks in advance.

Best regards
Olli Eloranta
Maalarintie 11 B
04200 Kerava
Finland
Tel. +358 400 206686
E-mail: olli.eloranta at pp.inet.fi