I love Boulder Dash, so I'm excited to see the layout on this beast. And also I love it when people have decent custom supports (like you, A7X, Jakizle, and DCs) so great job. I know how much time you put into angling all the flat beams to line up, plus all the editing and deleting of beams, my admiration to you. Luckily your layout isn't too far off the ground in most places and you don't have a lot of cross-overs, so that helps some. But still, that is a lot of ledgers to fix!
Good luck!