Many thanks Spyder, ive tryed one or two on ebay that had 7's breaking in the past, you know the sort because it wasnt a big enought piece they couldnt be bothered to get back to you, i looked at them at Rimmers but im sorry but i aint paying £28 for a piece of rubber, so i'll try Robssport or S+S.
I have not checked this out yet but my rumor source has hinted that Hyundai Excel door seals are very similar to those of the TR7/8. If so the rubber should be much fresher and somewhat easier to come by.
If you have not found a seal yet try Macgregor British Car Parts (Canada). 905-627-4006. It looks very good and they can send you a sample if you like.