I've been working on covering the foam on my door panels with fiberglass the past few days. It's a time-consuming process but it's going fairly well. I have 5 separate sections on each door panel and I have 3 sections almost completed. I've been working my way down from the top and I have to get the panel thickness just right in some places. The most challenging sections will probably be the ones behind my grab bars. I used spray foam on them and they have a lot of bubbles, plus they have the most complex shapes. The thickness needs to be just right at the door handle and grab bar too.
Here's what the panels looked like before I started fiberglassing them. I had them at net shape so I had to sand them down to make them thinner before applying the fiberglass. I'm using 1.5 oz mat and 4 oz cloth with polyester resin. The mat actually works very well. I haven't started on the rear panels yet, but I think they're going to be easier than the door panels. I'm waiting until the door panels are finished so I can match up the lines exactly.
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I'll post a couple of progress pics when I get them downloaded from my camera. I also have the rear armrests fitted to the side panels now.