Welcome to the site.
This will identify your winch model:
www.p2marine.com
However, I don't think that will solve the problem of the arm being bent. This is not a Hunter factory install but a previous owner's attempt, and not very successful one at that. Or it may have been a dealer install prior to delivery.
At any rate, this is the way it should be installed if you want to keep the arm straight:
Note the chain wraps snugly around the gypsy before entering the discharge housing and then dropping into the locker. This Lewmar is the same design as your Simpson Lawrence. If the chain discharges off to the port side as your does, you can see how it will eventually do a number, and another, and another, on the arm. Maybe get a half dozen arms if you do a lot of anchoring as we do.
This is how the 3/4" Starboard base should have been cut:
The odd shaped hole at the front is for the chain discharge.
This is the drilled and bored pedestal ready to receive the plate and windlass: