Bump, but I have a spare Model 3 Step 2 stack (from an HD LA Riders), and an Indy 500 Model 2B I was willing to part with. They do not have cages but I will include all PCB legs that came with them.
$160 for the Step 2 (no ROM board) OBO. Does have a bent filter board connector but works with occasional gfx bug (last time I ran it was fine)
I'm thinking $175 for the Model 2B and Indy 500 ROM since it's complete and working.
DM or let me know if you want.