She runs
Was a little concerned I'd airlocked it at first as after 10 minutes running (at idle) the water was roughly up to temp, rad top hose was hot and pressurised but bottom hose was cold. Wasn't sure as I had heat in the car without any problems. Left it to cool down and guess it was just that the thermostat hadn't opened (fans didn't kick in). Tried burping both top and bottom hoses and no noticeable air came out so wonder if having the heater fans on full in the car was taking enough heat out to stop it getting hot enough.
Checked it when cold and all levels looked good, so took it for a run last night. This time got up to temperature nicely, fans kicked in and everything working. Gave it quite a bit of stick (including a few big stops to clean up the brakes where its sat for a while) and temperature stayed where it should on the gauge so no overheating....all good I think
Oh, and no more oil drips so definitely looks like the modine seal was the cause
Now she just needs a swap to the other wheels/tyres and a damn good clean/polish and she should be ready for Germany.