£700-£800 I'd say. Maybe more on a good day. From what I remember C-3PO's have been hanging around on ebay for a while before selling, but don't think they were graded which might generate some more interest.
Really you think only this amount ? I was thinking over £1k for it ? With the prices of the last few I have seen where over 1k but weren't as nice as this one ?
I was really working off the fact that there have been a fair few 3PO's around recently. What looked like a dead mint one went for £600 + fees at Vectis on 15/4, and an AFA 85 went for £700 on ebay last year, but I've just checked and one also went for £1,100 @ Vectis last year so as usual it's a bit up and down. I thought the £1,100 last year was bonkers, it wasn't perfect.
I know the Jawa went high, but I don't really recall seeing a Jawa up for sale in the last 12 months or so, so perhaps that was the reason for the high price.