Thanks for all the great replies to my original question about out-of-state registration. In looking at all of your suggestions and insights, and in doing more research, I’ve realized a few things:
1. Vehicle Inspection. The state’s (whichever states) registration requirements for a vehicle inspection may be a problem for us because then we would have to have a yearly vehicle inspection in the state that we registered the RV, and so we’d be required to travel back to that state every year for the inspection. I found out though that these states don’t require vehicle inspections: Alaska, Arkansas, Iowa, Minnesota, Montana, South Carolina, and South Dakota. Michigan and Mississippi. Here’s the link: https://www.motorbiscuit.com/a-surpr...e-inspections/
So South Dakota registration might be the best option, except that legally we’d have to get a South Dakota driver’s license but according to America’s Mailbox: “Once they are registered, the law on the books states that you should come to anywhere in South Dakota within 90 days to obtain the driver’s license, which is your main proof of residency. However, we have not heard of anyone being stopped if they have not yet changed their driver’s license.” Here’s the link: https://americasmailbox.com/tips_and...e-Registration
2. LLC. The option for an LLC might work well, and I actually have an LLC in Hawaii for my consulting business (although I’m pretty much retired from it, I keep the LLC active just in case I end up working again). So I guess I could register an RV in the name of the LLC. The only issue I see is that commercial vehicle insurance might is more expensive than personal vehicle insurance, and also it might be more of a hassle doing the paper work to complete the registration (I guess depending on the state). Here is a link I found on registering a vehicle in a business name: https://smallbusiness.chron.com/addi...tle-37927.html
Thanks again for all the suggestions, I’m going to continue doing research until I figure out the best approach and will let you know what I find out.