Welcome @guzzis3 !
No idea. Curious to see what others think, and what you get up to…
Sounds like an epically large customized lowrider 4 build would be needed for such an epic project. Curious what Mech Eng folks here think about such long Y belts using the stock LR4 design?
Tom did some interesting mesh belt and captured rail mods to his LR3 https://forum.v1e.com/t/captured-y-rail-down-another-rabbit-hole/45705, but I haven’t seen results of his experiments, and, I personally haven’t see any yuge LR4 builds.
Already considered building a shorter more conventional sized version, and doing tiled cuts?
Already seen Maslow CNC used to do cut outs in glass fiber panels on a partially assembled Catamaran before… 30' Catamaran built with a Maslow CNC - Maslow Community - Maslow CNC Forums sharing incase that helps.
Good luck!