Engelbert -
It's been 25 years since production of the 320/360 ended. No upper tubular weldments (GM-1) or lower gear legs (GM-2) were stockpiled and it's now almost impossible to obtain originally-manufactured ones; however, Dominique Covre, a machinist in southern France is producing them (he's the only one in the world who does).
I've purchased a pair of both from him in the past year and they are outstanding, better-than-original replacements! He CNC's the GM-2 from 7075 aluminum billet and they actually fit a little better in the gear well than the original 90's-era cast legs.
I believe that GM-1's are 1,800 Euros/pair and GM-2's are 1,350 Euros/pair + shipping. Contact him at
dominique.covre@gmail.com (you'll need a translator)
Bill Rumburg

- Dominique's GM-2 (chromed)