Hi Fred,
Funnily enough I have one just like it - its a Nutool branded one though.
If its the one that is currently up for sale on EBay I'd say go for it without question - the version I have is now that its up and running is so much better than what I could possibly buy for any similar amount of money that Rexon is on for. I cant advise you on the spare part availability front though I imagine that since its a tool that had many different badges applied to it in its heyday in the US they could still be available. I know John Heisz did a YouTube video about a year ago for one he bought and needed a new arbor and managed to get one so its certainly possible, though any parts you'd need would likely have to be shipped in from the US.
It really is a solid, accurate, quiet, dado friendly table saw and I'm really happy with it, you'd have to spend a lot more to get something remotely similar in a new condition... and even then it would have to be from Woodford as they're the only sellers of these contractor style saws in the UK.
Hope that helps!
Alan