I do like the idea of a ladder section as the base for a trailer.
They are already designed to withstand a certain amount of abuse.
I do have a short ladder but the uprights are not parallel.
I imagine my L.B.S. would eventually have a couple of smaller wheels hanging around.
The rest will come with time.

Right now I am installing two schwalbé supremes on my hybrid.
After that it gets a tune-up,cleaning and greasing against the Spring rains soon to come.