He wrote, "My annual registration renewal is to be $880!" He bought the RV last March. I'm assuming he transferred the registration back then and paid his sales tax, and is now talking about his annual fee. But maybe he's confused?
To the OP, did you transfer the RV and pay the sales tax in March? This is just your annual registration fee you are talking about, correct?
I did just check the NADA value on his RV. I don't know all the options so I put in all the expensive options. I get a MSRP of $154k but a current average retail of $54k and low retail of $48k.