We really are taking over the forum (lol)
Ya with yours being a manual, kicks are a little more of a problem, but I wouldn't rule them out entirely. I think when car toys made mine, they made them stick out more then they needed to be. I think if space is an issue, they could have been pushed back more.
The next option would be the doors, but that is also a problem because the power window motor is right behind that panel. So you will need to glass something up to push the speaker out some.
Eventually I plan on putting some midbass drivers in the door of mine, try my hand at fiberglass and try and make something that looks factory.
But that will be a long time away