@The Drama Man and obviously others who provided advice, I took note of the places to check and all is good, well, very good it seems : ) Here's some pics of my new motor!! Underneath door.. Lifting carpets..
It looks as if its had a restoration not long ago. Metal looks good in the pics and the paint job is nice. Any pics for us of the engine bay?
The overdrive switch looks very James Bond. Does it work? On my early mgb the overdrive switch is on the dash rhs. I find when using the overdrive, it can jolt and stress the transmission if you switch it out manually while in 3rd or 4th gear. It will switch itself out when you change down to 2nd, then you can use the manual switch, if you get what I mean. There is a reverse lockout which prevents the overdrive working in reverse, or it would knacker it as it has a one way clutch in it. Enjoy your great car. Its a good price.