Excelent work, I see the middle swivel for the front seat, perfect!
Does the rowers seat adjust between the storage boxes?
May I suggest trimming the bolts and putting on some cap nuts, hell on waders.
I am planning on trimming the bolts and I have some cap nuts sitting in the garage ....just didn't want to trim anything until I made sure that I had everything in the right spot. Those stainless steel bolts aren't cheap! The rowers seat adjusts about 2" forward and back...probably should have left myself some more adjustment room.