Ah, I knew the RTS was massively outside my league back then. I did like the FR and FR 1 - the latter being top of my list for quite some time. It's a bit of a shock I've nver owned one!
The 159 looks great, and is on my list - the only one I've handled was faulty, sadly. So's an Aria, actually, but they're still too dear. Ditto the S2...
I've always loved the feel of Contaxes, but more important to me are those lovely lenses.