Bbhope... I read your PM, but couldn't reply as it said that you inbox is full, so here's what I did type to you :-))
I don't know if it will do any good, but wondering if you have, or should, directly say to the IVFA donor co-ordinator that you're looking for a blonde sperm donor, and can't they somehow let you look at a couple of US profiles, and then import the one you want. IVFA get their US donors from a sperm agency, and just pick a couple now and then to supplement gaps in their Australian list, so maybe it would be worth calling IVFA and having a conversation of what can be done.
Even if you're not allowed to do that, then perhaps if you tell them what you're looking for, then they can pick one from the list and hopefully that will be as close as possible. It's definitely worth ringing or emailing them with this, and at least see what they say.