What have you seen or installed for a seat with a aft helm? Just trying to come up with ideas to build a comfortable seat by the helm. There is little room for a chair between the wheel and the traveler. I think that we may have to modify where the life lines run and build a chair that can move fore and aft over the traveler.
I'm curious too. I've thought of just something temporary like a thick foam seat with a back on the lifelines may be sufficient.
PO had some sort of seat base that fit in the main sheet winch. Never saw it except at a distance in pictures, but don't think it's a good solution unless you are motoring and need to trim the main or traveller... I guess you could spin in circles .