This may have been reviewed before but since search is not working I will ask. Has anyone replaced manual head with electric on 1991 series boat. Seen several on Mk II but I think the hull slope and foot print are different. I want to do "drop in" replacement on existing bolts without a lot of fabrication work. On the lake, using holding tank only, either current sea water inlet or water tank fed set up. Waste line currently goes off bow side of toilet through wet locker to holding tank. Looking for experience, brand, model, effort etc. thanks