Gave the enclosure a light sanding and skimmed with some filler. There is a lot more filler on the last side as there seems to be a little bit of a dimple in it that needs to be leveled.
I am completely out of filler and resin so I'll test the seal in the box after sanding to see if I need to make another trip to get more resin and filler for the milkshake finish... if its sealed I'll probably just skip that step. Going to test by mounting the sub and gently pressing and holding down the cone and seeing how quickly it rebounds when released.
Here it is ready for filler...
The filler job is a little messy as I mixed it too hot and didn't get enough work time so it started to firm up on me... no big deal... I am planning to vinyl so it doesn't need to be flawless.
I will need to go pick out some vinyl.. I was hoping I could use a scrap left from my poker table project but its not quite wide enough... I'll try to find something that fits in with the OEM interior.