What's your Suggested yearly Maintenance/Repair fund/budget?

I have never had a budget, too many variables.

My silly method is to be prepared to spend whatever is necessary for my motor home, aircraft, cars and home to run as designed and what is safe.

I understand that the following remark will seem really stupid but I talk to my motor home and airplane. I tell them that I will do whatever they need and want, and in return I want them to keep me and mine safe.