I've recently started restoring a 1972 Chestnut Prospector 'Fort', and I've run into a problem that I'd like some thoughts as to how to solve. The canoe's inner rails are 'bowed out' a little in the front. This is because the canoe has no thwart close behind the front seat. The canoe does have two thwarts: one placed in the center and another a little ahead of the rear seat, but apparently the center thwart is too far away to prevent the movement. Also, the front seat is lowered from the rails by spacers, so it can't hold the rails in place either. Consequently the rails in this area are bulging out by over an inch. This causes the seat spacers to splay inwards from the rails down to the seat, and I fear that this will do damage to the rails someday. I'm looking for ideas to solve this. 1) I could simply add a third thwart behind the front seat. But this would change the 'look' of the Prospector and it would get in the way of anyone wanting to paddle the canoe sitting 'backwards' in the front seat. I could also use wing-nuts to secure the thwart and thus make it easily removable when paddling backward, but the canoe would still look different. 2) I could modify the existing seat, or make a new seat, to accommodate the wider distance between the rails. 3) Or I could add some wood to the sides of the seat that would allow me to fasten the seat to the ribs instead of (or in addition to) the rails. Thus the seat acts as a thwart. The front seat in my Rushton is held in place in this way. The seat spans 3 ribs so they ought to supply enough support. And the canvas would cover the screw heads so water leaks wouldn't be a concern. Seems to me option 3 is the best as it'll correct the problem, be unobtrusive, and maintain the classic Chestnut 'look' and functionality. Thoughts?