I've run these a dozen times over the last 2 years on the 32mm wheel sets.
19 open cars 2 box cars. They cost me $75 each plus shipping...yours for $850 shipped.
I ran them with lead weights on the under side. The underside photo shows typical residual adhesive or paint damage.
I also ran them with Kadee couplers. Since then I've put the 45mm wheel sets back on and the original chopper couplers.
A few of the chopper couplers don't have the hook for the chain.
Anyway if interested email me [email protected]
Cheers