If you would like to reduce the overall ht of the Weekend Warrior, by eliminating the loft you can save considerable ht. For example, if you were to replace the current 12 in 12 roof with a 4 in 12, you would reduce the overall ht from 17'-8" to 11'-6". An 8 in 12 roof slope would have a ht of 14'-6". We can pretty well chose whatever slope you like. These hts that I have listed are from the top of the subfloor upward, and do not include the floor construction.
Hope this helps