That’s PoloThat early Golf wagon ("estate") that the wheels are on is extremely rare.
I'd have to dig out my notes to confirm, but I think that one is a little taller than the earlier (Mk1 and Mk2) VW's. If someone wanted to replace a stock X rad without too much modification to the mounts, the shorter version (earlier VW's) might be a little easier to install. I know in your case it will be a custom installation anyway, so best to get the biggest rad you can fit. I just wanted to comment about the height for anyone else that may consider doing a rad swap. I like these rads for a affordable upgrade on the X.~3cm or a bit longer would also fit https://www.amazon.com/Nissen-651931-Nissens-Radiator-N1651931/dp/B00CKQ1W8Q
Now have to figure out how to make air bleeder in it or in the top pipe
Ok, I see what you mean in the pics. I was thinking the radiator would be mounted at a different angle or flipped over - with the hoses pointing more upward than downward. Glad you were able to get a bleeder in the tank without damage.But because of angle that radiator sits, ~45 degrees, and oulets are pointing to bottom- top row of radiator always will be with air