Will do - I meant to do that a while back & keep forgetting while I'm launching. From memory the water sits just below the rib stamped into the side of the boat at the transom which is the lowest point.
I started with a 1436LT which is 20lbs lighter than the standard Alumacraft 1436, giving me a little wiggle room. I'm sure I added 20lbs of aluminum bracing alone, ~25 lbs of FRP, ~25 lbs of expanding foam, plus the side console, livewell linings and hatches - so the non-removable additions probably total ~120 lbs. Add to that the outboard (105lbs) the trolling motor (50lbs) the battery (65lbs) that leaves me ~200lbs of capacity per the sticker for me, my gear & guests...oh well - I've added plenty of flotation evenly around the boat in the event something goes wrong.