@mijostyn The Jelco 850 is a great arm for the money but the company is out of business.
Yep, unfortunately. They were out of business when I bought mine just last year too. Did not deter me. I was lucky to get mine when I did. When I’ve seen them (rarely) for sale now, many are nearer to $2,000. I found mine to be pretty easy to set up, and just so happened to fit my SOTA premium arm board that was predrilled by the previous owner.
Again, I’m very pleased with my 850 MKII, and snagged a Jelco VTA adjustable base a couple months ago while I still could. A bit quirky, but it works, and makes VTA adjustments easier than manually unscrewing the stock set screw and hoping for the best in a ‘trial and error’ method.