Stephen,
This should help you: https://www.slotcarillustrated.com/portal/forums/showthread.php?t=50659
BTW, Proslot (no longer in business) also made an Alfa 156; it is a podded, sidewinder chassis. There’s one on Ebay with 3 days left: https://www.ebay.com/itm/1-32-Pro-Slot-3-SELENIA-ALFA-ROMEO-GT-used-/170933400930?pt=Slot_Cars&hash=item27cc6cb562
Here are a few more pictures of the Proslot Alfa: https://photobucket.com/images/Alfa+Romeo+156+White+-+Proslot/
I always thought this would be a good car to prep.
Ary.