Thanks for the advice guys!
Bought some NOS shocks but they seem old and not right... Options are SO limited here!
We're thinking about modifying the housings with something like these weld-in strut-tubes from Ireland Engineering (or something similar - have to take some measurements), to give us total flexibility and broad availability of parts going forward. With adjustable perches and the housing sized appropriately, we can pick and choose shock inserts custom valving, adjustable bump and rebound and we'll be able to select an infinite number of spring rates, ride heights etc.
I'll chat with Beta Boyz about the bushing kits!
Over the weekend we also chatted with another Zagato owner (1979), at an Italian event and he talked about larger diameter anti-roll bars that he bought via Summit Racing some years ago!? Anybody else know about this?