Well…if you never click with this one, are you sure its vet issues wont put off a buyer? Could you afford to keep it or sell at a substantial discount?
I missed if this one is still Green. If its been in the job you are buying it to do for some time successfully, vet questions are less a factor. But if not, nobody can know if it will hold up to regular work in the chosen discipline.
Never assume any horse will be easy to sell for a price that will allow quick replacement. Figuring on an easy resale if it doesn’t work out is usually a mistake with more expensive horses.