For concealability and smaller hands, the keltec, kahr, or glock 26 are good options.

Don't worry about the straw purchase thing. Unless you are buying it with the intent of transferring it to a known felon, you will be alright. Once you buy it, it's yours to do with as you see fit. I make out a bill of sale for every transfer I do, just for my records, even if it's a gift.