I breed a very rare breed and we need more genes in UK. There is a lovely male with great health tests I would like to use, but as he's in USA I would need to do frozen AI. A friend of mine has had 2 failed attempts from frozen semen and when you're paying out £2k its an expensive gamble. A male pup would be less expensive and the dog I like is to be used as stud soon. Trouble is I'm not impressed with the bitch. Her health tests are all good, she's just not my type. Would you take the gamble of AI or take the gamble of a pup?

Maybe you should do what Brainless did and travel to the US with your bitch for mating, that's the third option.

The bitch I want to use hates travelling unfortunately.

I think if was in your situation i would go for the male pup, as you said the A.i. is a big gamble. At least with a pup you would have his lines to use as a starting point to improve on with future litters even if the dam was not of your liking the pups still got the genes that you do like and it sounds like it could be an asset to the breed in the uk.

We used Merefield Veterinary Services early last month for a frozen semen mating.We brought our semen from Texas USA
Our bitch is in pup and the scanner said she has at least 10 
They do lots of artificial insemination so are well experienced at it,they did 4 the day that we were there .
They also do their own progesterone test as well,the same test as the Idexx test

If at all possible I would fly with the bitch to the USA, preferably during cooler weather (there are embargo's on many airlines May to October, and none will fly if temp too high (over 27'C I think it is).

The success rate with natural service is so much higher and the likely costs are not going to be that different.

Would someone with a bitch you like be prepared to do it and use the dog? 

As sure as eggs is eggs, because your not keen on the bitch, the pups the dog produces will be more like her. 

Also can you or someone else accomodate having a male pup?

over here (new zealand and australia) vets that use AI for racing greyhounds have a very good success rate, is there a vet over there that has success with greyhounds that could maybe do it?

Greyhounds here have a lot of success too, but as far as I can work out greys have large litters anyway so chances are mcuh better.

average greyhound litter is 6.1 pups,  although they have a high fertility.  although it may be an option to talk to a greyhound vet about AI

Interesting the average litter size in my breed based on my won experience is just under 6 pups but we have only had two successful litters by AI, 30 years apart, and a lot of money and time wasted in between on unsuccessful attempts.  Reproductive experts have been used in all cases, as it is not something your average vet does..