Shipping is fine if you're working. Have the post office hold it, ship it to work, ask a neighbor to take the package, etc. Or purchase over night shipping and take the afternoon off. If you know when your mail comes (it says on the mail box sometimes) it is super easy to predict with over-night so you can be sure to stay home. If you know you're off on Saturdays then have the breeder ship to the transhipper on a Thursday and over-night on Friday night.
Bettas are great at surviving. Mine passed because it wasn't supposed to get over 100* the day he was arriving but it was 102* and he was in the metal mailbox for two hours... *sigh* Normally they bring packages to the apartment office or our front door! GRRR!