A winch sound like a good idea...Winches are also heavy, you might want to consider some HL springs for the front end...I don't have a winch or carry weight on the front, and I bottom out my shocks on every ride.
I don't think the winch will hurt the air flow enough to consider a temp gauge...but a temp gauge is a good way to monitor the radiator...when my radiator and oil cooler gets caked with mud, I never know I'm running hot until the light goes on...then it's too late to look for a water hole.
I don't think the winch will hurt the air flow enough to consider a temp gauge...but a temp gauge is a good way to monitor the radiator...when my radiator and oil cooler gets caked with mud, I never know I'm running hot until the light goes on...then it's too late to look for a water hole.