To build this as a swappable, I think you can adjust the width of the canopy/fuselage area to allow the pod to slide into it. Install the two skewers in the bowtie area. Mount the pod upside down. The centerline of the engine will match the centerline of the triangle mount. Turn prop into pusher. I'm sure there are some other bits and pieces I am leaving out but you should be able to build from that. I am going to try it out this weekend.