Ok, for amps, to keep size down, get 2. One under each seat, 1 for your components, 1 for the sub. I'd look at kenwood for the amps. I recently learned about Image Dynamic subs, hella-good stuff. Get a truck style sub box and you'll be ready to go.
Now for the components, it's hard to say without seeing your interior. Doesn't the 88 have 1/2 plastic door panels with metal on the bottom? if so, cut some holes in the metal and put them right there.
---hope that helps some.