I started fitting the upper cowling today. LOTS of cutting, fitting, sanding, repeat. I think I have it pretty close. The rear edge fits the boot cowl indentation pretty good. I haven't drilled for clecos yet as I want to think about the space behind the spinner. Right now it's tight, I intentionally left the cowl long so I could gradually sand and fit for the correct spacing. I need to open up the hole I originally cut for the prop shaft so it clears the bolts on the back side of the spacer. Once I do that I can lower the front of the cowl about an inch which should center it on the spinner. The sides are long and will be trimmed to fit the bottom cowl when I have it in place. There is a bit of trimming at the back sides where the Lexan side windows are. There will be enough overlap of the cowl to go over the front edge of the Lexan, capturing it. The top of the Lexan side windows will be captured by the boot cowl as well. More work to do...