I would confirm that they certainly don't look like SA. But some could be in there, as satinized fur is recessive. Mixing angoras is pretty popular, since spinners are always looking for different wool types. There's a ton of dabbling that goes on and it's not really a big deal unless you show them. If you want to show or breed for pets, I would pass, especially since I guess there is no pedigree. Mixed angora pets aren't worth as much as pure. They'd probably be a ton of fun, though. Possibly good starter 'goras.