Dennis
Re Oregon as residence change
1. Don't believe you can renew drivers license via internet.
2. No extra fees on license plates. They do charge a higher fee for motor homes, but I think it is based on length. My 40 footer is around $350 for two years. Been the same for for 6 years.
3. No luxury tax on motor home.
4. You can renew the license plates via internet. Renewal will be sent to you home residence.
5. No special requirement for a drivers license and motor homes.
6. No sales tax, BUT --- 9% -- income tax--This will vary somewhat depending on income, but higher than many other states.
This will give you a start in gathering information