Look up the passat faq about the suspention.
If interested i have a complete set-up from a 93 passat diesel. Original aaz car.
Instrument cluster is unique to it. That is a one year only set-up/option in canada only.
if you want to do something about the front mask on the b3; you do you own grille; buy some home made one; or spend money in europe for used aftermarket parts.
pretty much nothing in hte north american market for them ...
if you are swaping to AAZ then also go for a tdi gearbox.
older diesels have a very short geared transmission and the engine with some minor tweaks has the power to pull a better and taller transmission!