Just putting two pedestal swivel seats in the front and I will probably build a rear bench with storage in it.
Ayuh,.... Every hull is different in that regard,.....
As Don says, mock-up something, 'n decide,....
The legs for the seat base in my tinbarge are 'bout 3', as the fuel tanks are under yer feet,....
The Atlantis project has 'bout 2' posts, under Pompanette captians seats, but with a footrest at the helm, 'n on the post of the another,....
The Nova project has 'bout 1' posts to barrel shaped bucket padded seats,....
Ya probably oughta decide on
which Seats 1st, buy 1, 'n mock it up, before buyin' whatever other hardware ya think ya gotta have, like slide rail adjustability,...