Light and seized when the wind
is howling is useless.
Heavy and reliable even when being dipped under a pounding wave? Priceless.
I realize what is at issue on a tri's bow, but it is
a tri, and a big 'un at that. I can't see even a heavily built windlass, particularly if sensibly located, affecting your trim so badly.
The chain, sure. Flake that down as far aft and as far down as you can.
Another aspect to consider is that windlasses are used to get people (meaning, usually, yourself) to the mast
top or to work on a secured boom to haul heavy things onto the deck
. Would you want the thing to seize while you were 7/8ths of the way to the masthead?