U uhhLess than $100 for a 452 barrel blank from Green Mountain, $40 for some walnut and maple at lumber yard. $300 for 1917 with a junk barrel. A spare model 28 cylinder. $60 for a rear sight Assy. A whole bunch of time in my shop. I used a short cylinder in this because did want it to be able to fire my longer warmed up 45 colt loads with the 1917 frame. If you had to pay someone to built one it would get pretty spendy I think. Turn and fit barrel. Fit ejector lug. Lugs for forearm. Modify frame. Make forearm and stock and butt plate. Etc etc