if youre going to repaint it, you have to resand until all those waves, dips and every thing that looks wrong when you prime it off. i like the black paint look you gave it just need to make sure that the fiberglass is almost perfect before you paint thats why is so hard to work with fiberglass. but im sure you can get them pods just right, youre almost there.
vinyl may not show as many inperfections as paint, but it will still show defects unles you use some sort of backing on it.
keep us updated, i realy want to see how the pods come out.
good job so far
laters