Built but then sensibly dimantled an even dafter spesh mtb. I , as THM can vouch, am very tall but I built a parts bin special Hardrock using a 13" frame, 140mm travel forks and a 550mm seatpost. Even more remarkable it actually worked handling like a 90's xc bike as its size required a long stem.
Mindful of how stupid it and me on it looked I took it apart but was good fun.