Planes in the Hospital.
The yellow cowl was cracked and missing a chunk. I feathered all the cracks with a dremel cutoff wheel to a shallow angle, then used a few layers of clear tape on the inside to help support the wet patch. I think the patches were 1.5 or 2 oz cloth.
The purple plane got a full nose job with a blue foam plug contact cemented to the firewall and shaped with 120 grit. The rough foam blank is first band sawed to the general outline before attaching to the firewall. I use swatches of clear tape over the foam, then go crazy with the West Systems epoxy and several layers of 2 oz cloth to arrive at a wall thickness of 1/16" or so..[at least]. I use duct tape to protect the covering before block sanding. This epoxy sands easily after 24 hours. I'll estimate that by the time it's trimmed to fit the engine and painted there will be 4 hours invested. It will take a lot of successful flights to get paid back in full.