Thank you for the response guys... exactly information I need.
82JeepCJ7, that is exactly the pic I needed to see location of original mount in 1982 roll cage (same cage as mine, blots to floor plates behind seats). Rock of the Marne! 3/7 Infantry.
The Jeep originally arrived with a set of really nice Corbeau Baja SS seats, with 4 point harnesses. The driver's seat even has the heater in it (not connected), and passenger side with slider. At 6'4", the thick SS seats were touch to deal with. Also, the original driver's seat mount was cut up and modified with angle iron, to put the seats uncomfortably close to the steering wheel (original owner must have REALLY short).
The Jeep will mostly see time on the road in nice weather, and mild off-road. I am installing a set of generic Rugged Ridge reclining seats (they look decent, tolerable, and are narrow enough to clear roll cage). The 3 point seat belts will be easier to deal with, and appreciated by my wife. I have preinstalled the seats with '87 Wrangler risers, and post '92 sliders for lowest seat height... works great! I have to weld/modify the risers, as the Z bar attached to the flip lever, as it hits floorboard step behind the seats (not a big deal). While at it, based upon images found on this sight, I am cutting the wheelwell back a couple inches to allow a little more leg room (2.5" spring lift, 32" tires, plenty or room). Thankfully, as the Jeep came from the SW desert, all the threads in the floorpans clean and serviceable, with no hidden body rot to contend with.
I will post pix in July, as I leave for five weeks of military training tomorrow.