As a bit of 'lol' follow up to this post. He went ahead and purchased the car. I picked it up and drove it home for my brother. Got it up the driveway and it was all sound, gave it a bit of a rev and the radiator hose blew it ass off, pissing hot coolant all down the side of the car and through the engine bay.
Long story short: Car was a bit of lemon, bad rebuild job with the gaskets, got lots of money back from the seller, engine has been rebuilt again with a TD05 installed instead. Will be good to see it on the road once it's complete.