Hi Doobs!
Ok GG, I know its scary. I hate ladders too. I found some scaffolding with steps under a $1000. I know this seems high but you have to ask yourself how many times you are going to have a real need to get on top of the roof.
https://www.scaffoldexpress.co…r-Tower-p/psv-nr-st-7.htm
Even if you move eventually to an apartment or something you will still want to keep the trailer in good condition....no water damage. So it might be a good investment.
I'm not sure you are going to like my next idea.......Senior Citizen Center of some kind will have resources....people that will help. Not that you are old like me.