Happy to refurbish them if need be, would prefer with tyres but once again not essential. Would also prefer to have tpms fitted, but once again not essential, main priority is 4 x 20" alloy wheels, budget would depend on condition of wheels and if they come with tyres and tpms but willing to negotiate any reasonable price, up to a max of around £1000
I see - I'll keep an eye out, as I have some i3 searches running.
Bare rims (in 5J and 5.5) seem to be £150-200 each on eBay.
The sets on there at the moment are from German importers and they're silly money, as I'm sure you know.