Finished layering on cloth and epoxy. I had to use a bit of fill to
get the right level where the outdrive sits against it. Did that part
way through and then added more cloth over it. Several thin strips
along the bottom as well to thicken that corner. In this shot I've
sanded it and gotten it ready to try to get some gelcoat on it. To
control the level around the opening I have stapled a small piece of
scrap board at the bottom of the opening. If you look carefully there
is also a couple small screws below that. The heads of the screws are
1/8" above the surface.

http://home.earthlink.net/~jamesgangnc/gelcoat1.jpg

In this shot I have smeared some gelcoat on and covered it with my
"mold". The bottom edge is stapled to a board and you can see I have
a piece of wood holding that against the edge. The clamp holds it
down at the level I set with the scrap board and the screws.

http://home.earthlink.net/~jamesgangnc/gelcoat2.jpg

Results were a little disappointing. I'm definitely going to have to
do a fair bit more filling in. I expected some wrinkles because of
the wax paper but it looks like I did not have enough gelcoat in the
middle of each side. At least from this point I've established a half
way decent bottom edge and enough of a surface level to work the low
spots up to. The area where I had the screws to set the level did
come out well and that's the most important point since the outdrive
will sit on that. Next I'll mix up some more gelcoat and trowel it
into the low spots.

http://home.earthlink.net/~jamesgangnc/gelcoat3.jpg