15" BBS 3 piece (replicas)

This is a staggered set, I think 7x15 and 7.5x15, nice condition split rims with white properly painted centres. 

The bolts show some minor lacquer cracking around them but the wheels are in great condition, very minor marks on the rims, as you can see in the pics. They are wearing 195 45 15 Athena austones or something, loads of tread, they look very recent to me. (Wheels and tyres were on when I bought it).

I have no idea what they're worth, so failing the revelation that they are genuine RS's, does £300 for wheels and tyres sound about right? They are in Bishops Stortford, CM23.

ETA- while I can't easily check, I'm going to say that those rear wheels are likely 8x15 looking at the pictures.