Great Job! RVing is supposed to be relaxing, and an unscheduled brake job in an unfriendly place is not relaxing. OP doesn't say where the new brakes came from, but I've used
Eastern Marine for a lot of trailer and brake parts. From my experience, they actually stock a lot of what they sell, and also actually know something about what they sell. I've gotten mostly boat trailer parts from them, but I'm on a sale mailing list and see a lot of brake, tire, and wheel specials. In some cases, shipping gets really pricey, but not always. Could be worth a look.