Okay, my sister is going to be SO MAD knowing I offered this to you before I did her...but you can borrow this Crystal to breed? I don't have any breeding plans for him, and he's not particularly amazing, but if you can buy a dragon with a Iridescent primary there's a 50/50 chance of producing Crystal primary babies I THINK.
Just send him back when he's done breeding. I know you really want a Crystal! And even though he's not stunning, you can see what he'll pair well with and continue breeding his babies until you produce something you like.
Let me know if you're interested in borrowing him
He'll be ready to breed in a bit over a week.