I think I must've spent at least 20-something hours on it, the second day I tried it I figured out a hard way to finish by dragonballing yourself up at the end, but you have to be extremely lucky to do it. Like at least 15 hours trying that method, and less after looking for a different way.
Not sure, but it must have taken me about two weeks to make the map considering that I went picky on the aesthetics, and about another week of testing it to make sure there weren't alternative solutions.
Still with the help of the TA version Bloopy managed to find one alternative during TCB times, I fixed that bug in the version I uploaded here and, surprisingly, Mablak found another bug.
Gladly both "bugs" were extremely hard to perform