Any tips for installing a cover, without a roof ladder?

jfkmk wrote:
What Lynnmor said. My previous trailer had no ladder but was a walkable roof. Current trailer has a ladder, but it was an option.
I used to use a step ladder to work aside the trailer to put on the cover.

I tried a 6-foot ladder on the side, but still didn't stand a chance. The cover is too heavy to pull from the other side, and was probably catching on the A/C units. My trailer is one of the taller style trailers.