Bart.......
What is it about that lathe that you like?
I don't have any hands on experience with a Rikon, and from what I hear, the only resemblance to the original Australian Woodfast lathes is the name. Matter of fact, I've heard a few complaints about quality......and, don't remember hearing anyone with any real background in lathe turning really praising it.
Maybe someone who has one of these can give you a better idea.
I see it has a six-step pulley......wonder why six? Slowest speed is 50rpm, and I know for a fact that this is just too fast to run a Grex random orbital sander. That would be a deal breaker for me.
Don't see where it says what the outboard swing is, but it's got to be huge. I doubt that outboard setup is going to be adequate for anything really heavy and out of balance. I'd guess only platters over 20" diameter are feasible.
For me, the largest I can go inboard with my Aussie Woodfast is 16", and at this point, I don't feel I'll ever need anything bigger. The Rikon has a 20" swing over the bed, and to my thinking, that's more than enough.
1 1/4" x 8tpi and No.2 Morse tapers would be what I would want.....it's got those.
ooc