Just wanted to post an update. Found a great seedbank after a lot of research:
United American Hemp. I ended up buying some unfeminized Cherry Wine seeds from them, shipping today (will report back with germination results).
One thing is clear--it's a total Wild West out there right now and a lot of shady operators as someone noted earlier in this thread. These guys stood head and shoulders above all the other seedbanks I talked to, both in terms of quality information on their website, responsiveness, friendliness, and total honesty and transparency about their practices. They really seem to understand genetics well and are very conscientious and thorough in how they go about their business. Have to reserve final judgement until I get these seeds sprouted but I'm 99% confident they'll be fine.
Prices were extremely reasonable also and they were fine with a smaller order (most of the hemp seedbanks won't even talk to you unless you're ready to order at least several hundred dollars worth of seeds).
Highly recommended.