1st enclosure

Hey,

I am thinking of building my 1st sealed sub enclosure for two 8" Orphans from Sound Splinter. I am planning to put it in the trunk of my car (Focus zx3). The trunk measures ~ 41 wide and 30" deep.

I believe a single orphan needs 0.186 cu ft (0.178cuft + .08cu ft displacement of the sub) so im assuming (correct me if im wrong) two orphans would need 2x as much, .372cu ft.

What I know for certain is that the box needs to be at least 6" deep and be able to fit 2 amps on top (1 mono channel for the orphans and one amp for the speakers).

And I would like to be able to easily remove the enclosure when i need a bit of extra space in my trunk, so would something like banana connectors with a box terminal be good?

Trying to think of good dimensions for the box without taking up my whole trunk. I'll be using the usual 3/4" MDF to build this.

And last question, whats a good way to secure the box to the car, so its easy to remove but secure in the car??

Comments and suggestions welcome.

Thanks.