The OSSC Pro is actually one of my go-to in my workspace setup. Big fan of it, highly recommend.

A problem here is that it doesn't have composite input like you'd need for the Apple II. So you'd need a Koryuu or the add-on I think they're selling now, which complicates things a bit. A solvable problem, of course, and maybe I should've included that in my post as well. Probably would have if it was a bit more serious!