Hi Jim,
I own a Park RH91. It is mint condition with walnut stock. It is .22 rifle. I paid £375 for it. They sell for anywhere from £250 upwards. £350 seems to be about sensible money. I have seen people ask as much as £850 (gun trader currently - same gun that did not sell at £1,025 - it is however a totally mint thumbhole stocked version)
My neighbour is keen to buy one and he only lives in Swansea, he may be buying one this week, but if that falls through I can pm you his contact details and you can put the guy at the club in contact with him.
Hope that helps
Best regards,
Matthew