IMHO 40-50k depending on buyer, upper end if the buyer really wants it and could go higher if a collector must have. Only a handful in NZ and they don't turnover very often so pretty hard to say. A key point is finding a buyer with the cash in today's market as there a lot of choice at that money. They are an icon so any respectable car head should be ware of them.
Probably available cheaper if not looked after, but will easily end up with this sort of money to make it mint. RS2s is similar if 5-10k lower.
Some astute (and lucky) punters have both...
There is a 10v on tm asking 40k. Never seen a 10v go for that but km sure the urq owners could comment here as well?