I think if it's in good condition that's a fair price from a dealer, 500k MGB's made and what would one of them be in the same condition £7k + on a dealers lot. I like MGB's and started out looking for one but in my price range they were all basket cases, then a friend said he knew someone selling one locally so I went to look and it was a TF, drove it out of courtesy the car was rotten so I passed but I wasn't looking for a B anymore. During covid I bid on line for one at Anglia Auctions (54 plate 27K) I dropped out at £3K and it made I think £3.3K, this was despite me having just gotten my current one a few weeks earlier.