you are jumping straight into the box build without any projected results or graphs from the sub's electromechanical paramters aka you are just blinding throwing numbers out there without knowing how the sub sounds like. The whole thread everyone has been saying this but its not sinking in to you.
Straight up you should just stop and have someone design your box for you period.
just link your sub model number or whatever spec sheet the manufacturer gives out that has QES, QMS, QTS VAS, FS, MMS, Xmax etc... the sheet you showed only gave half @ssed information thats missing QES and QMS so you wont get anything done without those numbers.
List your ABSOLUTE max dimensions we'll see whats the best design for your car.
That way we can end this shit show and everyone's happy.
You havent even told us what vehicle this is going in either. that also has an impact on box design.