yes
WESMAR has a perfect & easy to DIY install rear Stern-Thruster that works well on a Grand Banks & other similar simi-displacement trawlers.
Bolts right on back of the stern & has a tube with dual counter-rotation props in it that give you the side thrust as water is pushed out of the bolt on external tube for side to side thrust as selected by Captain.
Motor & electrical are all inside the boat & the prop & gear box is on outside.
One 4 inch or so size hole in the stern hull wall as far below the water line as you can & preferably in the rear middle, so maybe about a foot or so down.
Mine is a electric - 24 volt 13 HP, & is what I have - but for more power they have a 48-Volt -26 hp. or so size also available.
Mine has been very reliable & works well on 42 footer.
Good luck.
Alfa Mike