I know what you mean about moody service history, clocked, etc but the car i'm looking at has come out of Japan originally and so all that stuff is taken with a pinch of salt anyway. I'll just go off current condition.

I've got no way of towing it. I either drive it or pay a company to bring it over for me.

The car is road legal in Ireland (NCT and tax), I shouldn't have a problem at the ports should I? Surely it's no different than if an Irish bloke came over to the UK on holiday.