Hairless don't always carry something?
Don't get a hairless female. They can have lactating problems, and it's better to completely avoid it, than to find out the hard way that yours has lactating problems, and have to start all over, and kill a litter of pups.
Hairless is recessive, so you'll need to breed your hairless buck, to a normal female, then pick a female from the litter, and breed it back to the hairless buck, and you should get 25% hairless pups. They all look the same up until they're about 1 week old, then you can see their whiskers are kinky, and their fur grows in wavy. They'll have the baby fur until they're a few months old.