I have the same boat. I don't think removing or modifying the seats is an option. Mirrocraft has always prided itself in it's self-float boats and it's because the seats are foamed. I would cover the holes in that forward seat with aluminum tape or similar. The flotation will absorb rain water over time and it adds a lot of weight to the boat. If you want a seat that will hold your big-behind, you can't go wrong with a millennium. I have 1 in the stern stb side and I have another on the second seat, port side. The wife and I balance it out fine. I'm 215 and she is about 160. I also have the gas tank port aft, and the battery in front of the bow seat. I don't think having seats that aren't attached to the boat is good idea. Other than live with it or loose weight, I don't see many options. That Honda is certainly no skinny-girl either.
I looked at mine and moving the seats forward is very feasible. I had mine out this past Spring to replace the seat mounts which are marine plywood. The angle for the benches is simply riveted to the hull. I don't see why you couldn't move it. But moving it would create cramped stowage in the main compartment.
I looked at mine and moving the seats forward is very feasible. I had mine out this past Spring to replace the seat mounts which are marine plywood. The angle for the benches is simply riveted to the hull. I don't see why you couldn't move it. But moving it would create cramped stowage in the main compartment.