I don't have the time or interst in staying on top of total care that some do, so I commend you on your ambition. I keep after it, but try to be efficient and reasonable about it.
I wash the roof with Spic-N-Span twice a year, and the same for the sides with Zip Wax and Reliable RV cleaner on the black streaks. Check the mechanicals thoroughly, and the roof caulking (had a small leak last year). After the basics are taken care of, I get into the running gear. In PA, we have to pull two wheels every year for brake checks at State Inspection stations, so those two wheels I go over after I get it back, just to be sure (no, I don't have full confidence in their work). My local garage works with me to alternate every year, so I stay on top of all four wheels on an every-other-year basis. The two I don't pull, I push some fresh grease in the inner bearing through the super lube fitting, and in the outer bearing carefully with a grease needle, and check them for funcion, noise, play and free rolling.
Throughout the season I do frequent walk-arounds to look for trouble. I have enough to do otherwise, so I don't obsess as much as some. Year six is showing some age, but overall, she still looks pretty good. The decals will go first, especially the side that takes most of the sun in storage. The ones on the rear shielded by the garage are still pristine, so it isn't the Zip Wax making them peel. I'm chomping at the bit to get out there. Should only have a week or two to wait for un-winterize!
Don't forget to sanitize your water system!
"It`s not important that you know all the answers, it`s only important to know where to get all the answers" Arone Kleamyck
"...An unarmed man can only flee from evil, and evil is not overcome by fleeing from it." Col. Jeff Cooper
Sunset Creek 298 BH