I used an Epiglass two pack high build to hide the minor bumps and fill pin holes. Trouble was that it really needed to be sprayed on and I haven't got the equipment and location for that. It can be brushed but it goes on looking like a gorilla's back hair. This required a lot of sanding, and worse it left brush strokes that still had to be filled.
I also found that I don't have the skill to get a glassy surface.
Dust, ohh the dust.
One joy is that by painting everything the same colour the true shape of the car starts to emerge.
The car is now at a body shop. They were very kind about my efforts so far. However, they have gone on to skim the whole body. Partly this was because pin holes kept popping through the paint as the inside-out fibreglass method means that the weave is on the surface rather than a smooth gel coat. Partly, this was because I used sharpie marker which bleeds through to the top coat - ouch.
The main reason, I'm sure, though was that the pros want a perfect surface to showcase the top coat. It's their reputation after all. So my time sanding over the last three months has counted for bugger all. Oh well....
This pix shows stages of work at the body shop. The clam-shell is filled, the body is smoothed and the engine cover is primed.
Back from the Paint Shop - amazed friends and relatives now believe it's a car