I finally tore into my kitbash using a later, now available, Keystone Details pilot and detailing kit. The images below are the highlights of the build, and the official step by step instructions are linked below.
https://photos.app.goo.gl/5Mgu2ihaFUg1jafB6The kit includes the replacement pilot and pilot truck frame, full standard PRR boiler details (sand dome, whistle, marker lights, safety valves, reversing cylinder, headlight, headlight bracket, boiler support rod steps, generator, smokestack, tender water scoop), and both versions of the feedwater pump. Other details were fashioned by me
Readying the replacement pilot for installation:
Pilot installed, readying replacement pilot truck assembly:
Chassis on the track:
Dummy coupler fit with the MT coupler height gage. This coupler is the same one that
@eric220 requested for the BLI M1 pilot for double heading
Side view of dummy coupler and MT height gage.
Lengthened tender drawbar:
Tender drawbar, chassis & shortened boiler shell:
More pics to follow now that the hard part is complete.