[RunTMCfan]

Any amp from the 90's is generally a better amp than something built today.

I did see later that it had a 4ch amp as well for the mids and highs. I'm just thinking that you wouldn't be too happy with something that looks like a computer in the back of your blazer.

An amp rack under the bench would be very simple to do. You have most of the gear. Odds are the amps you have are better than what's in that sub. Fitting a sub under the drivers seat is a toughy.

Keep your original center console but pull it out and store it away. Buy a crappy reproduction one and seel the lid. Cut out the bottom and do multiple layers of fiberglass in the center consol to seel it up and give it rigidity. Build a panel (baffle) that is down firing with at least and inch or so of space between the floor and this panel. Your consol is probably well over 1cuft.

With amps under your rear seat and a woofer in your consol you have lost nothing in style. The only function you have lost is your center console. But if looks really matter this is probably the only "stock" set up I can think of.