tyres ??

[motordavid]

Well, I have no direct experience doing that and, from memory,
have not read anyone doing that, on this or, other car boards I peruse...
A quick GOOG search, same as you could do, lists some anecdotal
stuff suggesting not to, but nothing very concrete or documented, imo.

Thinking about it, (having driven a lot on RFTs and non-RFTS on same
car: a Corvette), I would guess that the handling may be or, should be
slightly affected at hard cornering limits. But, that is simply a notion
on my part, and based on the RFTs having a much stiffer side wall and
slightly different construction. It would also seem that your potential
non-RFT rear fitment idea may have less detrimental effect due to being
on the non-steering axle...

Back at the ol'Tire Ranch, your initial wonderment on RFTs, "do not last
and give a poorer ride quality", is a bit overboard, imo. RFTs are getting
"better" by the year and while they have slightly different characteristics,
especially when "worn", I would not dismiss them out of hand...
Long post, much of which you have probably found out in your search.
GL,mD