things. I wonder how much chain would weigh 28 lbs, same as my battery,
which when placed in the bow for experimental purposes, added just enough
weight to level things nicely.

14' boat.....

3/8" chain= 10 ' weighs about 4 pounds.
You could put 70' of chain up there to duplicate your 28 pound battery.

1/2" chain= 10' weighs about 6 pounds.
Call it 50', a pound or two one way or the other won't matter.