Oscar, are these what you're looking for:
STP60617.jpg
STP60618.jpg
There is a bit of scuffing to very edges of the outsides, and marks on the inside where they've been catching on the hubs, but apart from that, they are 100% solid, and have cleaned up quite nicely!
I'm fairly sure they are 2.2" rears as I've placed them up against some Tamiya rear Star Dish wheels, and they almost match perfectly:
STP60619.jpg
The dimensions are approx 1 & 1/4" depth, and 2 & 1/16" across.
As for value, I'm not sure, what did you have in mind?
Just let me know if you are interested.
Cheers, Leigh.
P.S. I could meet you at York if you ever go?