Advice on new system for a 70 vert

[hobgoblin351]

Hey Tireburner, if you're really the master I need your advice! I'm just putting the finishing touches on my 1970 Candy Apple Red convertible. It's now time for the tunes. I dont have alot of room to work with as far as speakers. So custom is in order. Here's what I'm thinking tell me if I'm on the right path.
There is really no room in the dash, and any speaker would be bouncing sound off the windshield. So, I'm putting the front speakers in the doors. Probably 4" or 5" down in the lower front of the panel. I looking at Infinety Kappa's , duels or maybe tri's. I may have to build them out a 1/2 inch or so to clear the window regulators. The rear is much worse. No place at all. I looking at a small component setup. They're like a 4" by 6" panel and come with a small midrange a tweeter mounted. Infinety Kapps again. They say they can handle 100watts. The good thing is they are shallow so I can sink them into the rear quater trim panels. I'll only have to build a box that comes out an inch or so. Since all the speakers are relatively small a sub woofer is inorder, to handle the low end. Fitting one in the trunk is no small feat, since the convertible top well takes up most of the useable trunk space, and my gas tank also doubles as the trunk floor! Yeah I know who's idea was that! lol I was looking at one of those Tube woofers. But I might go with a 10" Kappa if I can find a place to mount the box.
Does it sound like I'm on the right track? What do you think of speaker selection as far as size and brand? For the fronts they make speaks with the directional tweets, are they reallt worth it? Are those rear components a good choice? What should I do for a sub-woofer? This is going to be one hot car and I need a good system! Thanks in advance