Destin-
Make sure the nipple for the PCV valve isn't split or something. If you can't get it to seal you'll need to get pipe sealant for
oil lines at a real plumbing supply, I think it's blue. Teflon tape won't hold up. Not sure what that aluminum riser setup is, but if it's not a tapered thread it won't seal.
Plug looks good but it's hard to see. Obviously not rich, so you want to keep an eye out for glazing (shiny surfaces) or melting (rounding of the electrodes).
If you don't want to take on a rebuild of the winch PM me, I've got one sitting on the floor I'll probably never use, I'd have to open it to be sure it doesn't look the same.
And for those not as brave as you........................please put something on your fender when working in there............