Thanks for all of the advice everyone.
I've considered a HELOC loan, but in this case, I'd rather not have the RV loan secured to my home in any way. For this low of an amount, I can get 4.5% for 10-12 years, and that's good enough for me, as I expect to pay it off much sooner.
I just wasn't sure how long the process will take to get the money if I arrange the loan by myself. Sounds like I can start the process on a Monday and have everything completed by the end of the same week. I have the final bill of sale, so you'd think it wouldn't be too involved.
Thanks again.