[wingnut60]

Sorry for your problems.
Just find a professional spring/axle shop and they will be able to fix your problems--forget Lippert/DRV.
You should be able to find locks online/camping world...maybe. Might take you some time/effort at online research.
Entertainment center? Everyone has problems with them--we had to have Dish tech come to our campground after buying because we didn't listen at the PDI when we bought used also--our bad, not real problem, just did not understand operation. Almost none of the RVs have good AM/FM units, antenna a big problem--nothing outside.
Hang in there--if these are you biggest problems, it will get better.
What are you towing with?
Wow, did not note you made it to Maine--check locally for spring shop recommendation. Back in TX, would be no problem.
Joe