The biggest problem with recessives like this, is that if you start off with stock with the double recessive gene, they have nothing else they can contribute to their offspring. So even if you use a non-related, non-recessive buck, every single kit will be a carrier. They probably won't have the tooth issue themselves, as it usually takes two recessive copies to manifest, but every kit will carry a copy of the curled tooth recessive. You may go years without seeing any bad teeth when outcrossed to a non-carrier buck. The problem however may come back to bite you when you start breeding offspring from that original doe, as each kit has a 50/50 chance of passing the recessive on to the next generation. Since you're having trouble finding outcross stock already, you're more likely to use one of your own bucks years down the line, and yes, it could happen again. Not only that, but any stock you sell from the original crosses would definitely be carrying the recessive trait, which could be a disaster for other breeders who have now introduced this into their herd.
I'm sorry to say this, culling is so hard in so many ways, but I really wouldn't use that line. You might be able to contact a breeder with standard Satins that lives elsewhere but competes at a show somewhat near you, and arrange for them to bring rabbits for sale when they come. Or, a breeder may be making a trip out your way, and be able to meet you along the way to make the sale. I've done both, and it really helps when you need stock that is not available locally.
