2014 Airstream - Exterior maintenance plan with questions

I just purchased a lightly used 2014 25' Flying Cloud. Given the circumstances of the prior owners it has basically sat for its entire life. The original purchase date was October 2013 so I estimate that the trailer must be about a year old.



It already has some corrosion starting on the grab handle for the door as well as rust on the steel steps.



I want to get on top of things ASAP.



So here is the plan with some questions.



Griots Garage Paint Sealant. Applied by hand yearly after a good washing.



CorrosionX Aviation - Applied quarterly on all areas of existing aluminum corrosion. Do I use this prophylactic as well?



Boeshield T-9 - Applied semiannually or quarterly on all areas of steel that may rust. Frame, steps, etc.



Dupont Teflon dry lubricant - Semiannual lubrication of hinges such as exterior door hinges.



303 Marine UV Protectant - Semiannually on the white roof.



Teflon Silicone Lubricant - As needed on window and hatch seals.



Adseal - Every three years on the fantastic fans and skylight? As I understand NOT the air conditioner.



What about doors and windows? Aluminum skin joints and rivets?



Thoughts would be appreciated. Thank you.