Now working on a scale propeller for this build. The scale for the prop turns out to be 16-15/16 inch diameter. My LHS did not have any 17 inch props to work with and the 18 inch props were just too bulky to work with, so I chose a couple of Master Airscrew 16x4 K series props to build the 4-blade model. I haven't decided between cuffed or uncuffed display, but with the base width of these props I may just go with cuffed version.