"Then, for the vital airflow I need I cut a slot through the foam and pan. I have 1-1/4" flex tube, ducted from the front of the bike directly into the seat slot, for fresh air flow,....right, ya know "there". A bit like ram air flow for me, not the bike. Hopefully no more "swamp shorts"
Better put a screen over that air intake,...otherwise that your "swamp shorts" will become ..."bug-butt"
Just teasin' with ya,...very nice job!.... Let us know how the air flow [does] work! It really is a great idea.