General advice for elderly RV'ers: Most brands and models of new RV's have a few defects to be fixed by the Dealer's service department as authorized by the Manufacturer. This can take time and delay first use. Try to find out the Dealer's reputation for after sale fixes. Don't buy until you have all promises about fixes and upgrades, etc. written into the purchase order. Buy a popular name brand. Depending on your physical abilities, you may have to have maintenance and repairs done for you, regardless of brand, etc. Includes maintenance of house batteries, basic oil and filter changes, brakes, alignment, and many other troubleshooting and repair activities over time.
Make sure that you select a length and floor plan, including rear bedroom vs overhead or convertible couch sleeping, etc. that suites your needs and desires. Take your time learning what's available and total costs of ownership and usage