I see a couple of these enlargers for sale yearly in my local Craigslist, here in the PNW. None at the moment, but there is one for sale in Vancouver BC, selling for 450 Canadian. Albeit, shipping would be expensive.
There is also another in Portland, Or - being sold by Blue Moon Camera for $700 + shipping. You’ll need to inquire regarding version.
I own 2 of these. One with a Heiland Splitgrade using the Philips 13139 lamp and double condenser. And another with an original 6604 lamp and condenser. Although I have 13139 conversion holder, I keep it original as I actually prefer it for many images. Both have the variable transformer switch on the back.
I’m fortunate to have a stash both halogen lamps (old and new) for the long haul.
Good luck on your search.