Sadly (for you) you can't build a frame that large from Genius - it's VERY thin-walled and once the tubes get that long prone to flex/failure taking likely weight of rider needing that size into consideration. I think Masciaghi/Coppi did do some bigger sizes in the oddly named Brain tubeset which is tougher (but heavier). 57 is the biggest I've seen Genius go, and not recommended for pie-lovers!
Sadly (for you) you can't build a frame that large from Genius - it's VERY thin-walled and once the tubes get that long prone to flex/failure taking likely weight of rider needing that size into consideration. I think Masciaghi/Coppi did do some bigger sizes in the oddly named Brain tubeset which is tougher (but heavier). 57 is the biggest I've seen Genius go, and not recommended for pie-lovers!