Discovered the solution to removing the front seats.
There are 3 bolts; one at the front of the cusion accessible through the bow/anchor storage area, one through the cup holder by the windshield and the third from the spotter seats storage area and from under the dashboard.
After removing the three nuts and washers, the cushion slides up over 5 J clips.
The port side cushions also had a sheet metal screw (no idea why) in the bow upper corner (this took longer to remove than both cushions in total). Used a stubby screwdriver and backed it out enough to remove the cushion. Did not replace.
Thanks to those who replied.