Google search seems to find new ones at discount prices a bit over $400.
If you are patient you might find one at a marine consignment store or on CL. Luckily this is a common model for smaller powerboats and there might be more of them out there.
Bargains can pop up.... some years ago we found an almost-new Origo 6000, for $600. on a local CL. It replaced our original (same model) installed by EY in 1988 and well used and worn, with cloudy oven glass and lots of small scratches.
Those things are really well built, and when I gave the "old" one to a buddy, he took it all apart and buffed it all out... and replaced the pressure alcohol range in his late-70's sailboat.
IIRC, he did share a wee dram of good scotch with me to celebrate.
Good luck on your search.
Loren