Speaker recommendations

[Ackattack]

I'm starting to price out and figure out what I want for a stereo in my 68.

I'm planning on making some kick panel speaker mounts

Then in place of the gas tank, make an insert that holds a sub (8" or 10"...need advice here), amp, and 2 rear speakers.

So what is a good brand/size for the speakers and sub

I figure the sub enclosure will be fairly small, and fairly shallow.