building a budget sq system

First off thanx for the help guys.

intro, i have done about 5 systems in my supra over the past few year's alway's sound good but never completely finished. It's time to do the final install

Head unit, Think i am going to buy a alpine 7969.

Component's. the door's have boxes from the factory, which have 4's stock... i ran a set of polk db 3045's..... sounded good but lacked lowerend mid bass, i was using a soundstream 604 to power those. nice and clean but still lacked low end

The later years came with 6.5's in the door's, however they where free-air. it is rather easy to seal these, so i am going to run either a set of polk db 3065's or a pair of soundstream exact 6.3's. The amp will either be a Soundstream class A, or a lil wonder, depending on budget this spring

Now the trouble comes in with, i want to run a pair of old school Soundstream USA 8's,  duel 4 ohm's,  i would like a little low end, could i acheive this by running one in a seal box and one in  a bandpass. or should i just use them both in  a sealed box?

Oh, can't forget the amp.... thinking a Soundstream Angina for 2 sealed or 2 Angina's for bandpass/sealed, I know they arent sq amp's but.......

I do have a Epx2 i am selling, that i could use if i go with the bandpass/sealed combo

Thanx for the advice