Update ...
Got the sub tub and sub mount shaped and glassed over the weekend. In order to get the tub in and out of the car easily and fit the sub in the desired location I had to fabricate the enclosure in two pieces.
Total volume as it sits is 2 cu ft so I will partition off the front section to achieve the desired 1.33 cu ft. I did a similar tub in my 01' Vette with a JL sub and it worked out well so I expect good results.
This weekend's goal is to finish the tub, and get the sub mount ready for paint as well as fab the power/ground panel...maybe even mount the amps...