Discreet subwoofer(s) designs

[ClausVonWendel]

Hey all, i'm looking for any advice, (esp in the form of pics/designs) on DIY subwoofer installs in the rear cargo area.

I'm hoping to install one 10" sub in each of the rear storage compartments. So i can still use the full cargo area and hopefully still be able to lift the floor and use the spare.

I am hoping to just use basic materials (MDFwood/dynamat/etc), but if custom fiberglass has worked who knows??. I am currently trying to figure out the best design myself but am having some difficulty.
So if anyone has pictures or "blueprints" or even advice of their own project, i'd be much obliged

Thanks