I say give them a chance. Just my opinion of course.
The hobby is going thru a bad spell as whole.
Let's see what happens, maybe the car will do well. That is what counts isn't IT?
As far as a PO box or mailing address, I don't care if a company has a PO box, APO...or a 30 bay loading dock as long as they can satisfy my need as a consumer. Support your LHS if they want to try and get the TM parts (if terms are agreed upon) if not then find other options.
Good luck to all....
let's be nice to each other.....we need this hobby to survive.