There is a slightly easier way... If you use 2 small tables, 1 stacked books, and 2 damaged books, then target the top damaged book it will place a goza that you can walk under, and you can do it from the ground level. You dont need to use a ladder or anything like that. Thats what I used to build my floating gardens...
Floating Gardens
Is that kind of what your going for? Hope that helps.