If interested, there was information on mine on page 12 here. Balance specs were given. 1400 mile engine that I started with.
https://www.thetruckstop.us/forum/threads/95-engine-build.50739/page-12#post-658280
I have the single t-stat and loaded up a little in the hills of southern Ohio with A/C on and 90-95 degrees out, I didn't need to turn off the air conditioner. That is with an OEM which I believe is 195. It didn't really offer to get much warmer than typical unladen.
An internally plugged...
I replaced the ones in the rear also - 4x6 maybe? They're hard to get to on account of the need to remove the ceiling trim and loosen the pillar plastic but I got it done and no clips broke. The speaker location is fine for metal heads but others might complain.
If I remember right, I left the one above alone and just replaced the lower.
I think mine are Sony
I didn't have to fish any wires but I bought from Crutchfield so I would have gotten an installation kit if it was needed.