2gypsies, I have nothing against PPL as I look at their site all the time. I have a friend who sold his National RV there and was pleased.
I did not pick PPL to consign our '08 Monaco Dynasty because they leave the slides out and from what I understand, they don't plug in their units. Summertime in Texas is not pleasant. I could not leave our pristine motorhome on a lot with my slides out in the heat. Storms can pop up quickly and rip them off.
As for leaks, I think it would be evident if there was previous leak. Any good unit could start leaking tomorrow.
We chose to consign ours at the Motorhomes of Texas in Nacogdoches. They keep them plugged in with the air on (if needed) and the slides 'IN' until a customer wants to look at a unit. We sold ours in 90 days at what I thought was a reasonable price.
Safe travels,
MM.