My cowl ring was 1/32" short on the sides. Here's what i did to fix this.

I marked where the ring was short so I knew where to add wood to.


I marked some 1/32" plywood for what I needed.


Then I cut the strips (any way you want to cut it, scissors was my way).


Using some Medium Zap, I glued them on between the marks.


Then i finished it with a final sanding to fit the fuse.


Next is motor mounting. I am spacing it out a bit so the cowling fits 'better'. I'll explain once it's done.