Bounty 2 has been completed in the dev version. (Thanks mizru and dayturnal!)

Bounty 1.... I'm not exactly sure what's wanted here, because it sounds to me that Ãœbercart does this already. Mostly. I think both USPS and FedEx modules can limit which services they return quotes for, and you can change the text displayed by the Flatrate module to "Local Pickup" fairly easily.