Got a call from MPI
So I talked to MPI about this and he thought the plastic box is still too close to heat sources where I wanted to put it and that it is too low as the tank would likely fill when the oil warmed up in the main tank.
He also said that they are now in the process of making the fittings, and I think they have really listen to some suggestions by other people and have a fix that I am willing to give a shot.
Their fix is to plug the bottom of the tank line so that the line can not back fill from the tank. They are then going to run the drain line that comes out of the oil separator that use to run under the engine and into the bottom of the tank run to the inspection port instead of back to the oil tank.
Other than a roll over this should return the oil somewhere instead of the breather tube.
also he made it sound like the parts will be going out soon.