When I replaced the hydraulic side of my brakes about 5 yrs ago I added a Wilwood remote reservoir. It's translucent so I can see the level without opening it. It's mounted on the back cab wall behind the left seat. I tapped a pipe X tubing elbow into the top of the master cylinder cap. Had to add a slight bump in the cover in the floor for clearance. However my floor is "non-stock". Its a piece of 3/4" plywood with a piece of sheet metal for the master cylinder cover. So far it appears it has worker well, no leaks, fluid has no discoloration.