Built this myself in 7 days. Took 54 hours. Not proud of how no life i went on building this, but its a cool build. You can find it at x:513 z:-4156. In the nether the closest portal is at x:58 z:-508 theres a cobble stone slab path to it. You’ll need to max your render distance to see it from the viewing platform
Just to be clear, building it took 1.5 days, gathering the materials and getting all the needed tools took the rest of the time. It required 94,000 stone so i needed to build a cobble gen and a super smelter, and to fuel the super smelter i needed to farm like 15000 charcoal from tree farming. Building everything is super easy with litematica’s easy build. Without it i reckon building it would take like 4 weeks alone.