a couple quick thoughts
there are two manufactures of propane tanks and one can fit the stock setup as two others have them that fit
mine did not fit but were very very close so got some rod stock and bent my own hoops to replace the stock ones and the tank fits great took a few tries to get the exact length I think one of the other guys here did that also
I am going to replace my running lights also
the gas cans and holders the new holders have metal plate in front of them to protect them
I had some debris fly up and cut one of my scepter tanks with a nice gash that dumped my fuel with the open design
I am going to run the plastic still since they are silent and nicer I think
not sure how I am going to do it yet ? might get diamond plate and cut it to the width and rivet it on ?
but another quick mod you might want to do would be to protect them
I am also going to plate my front nose box as I have a nice dent in it now

again road debris flew up and hit it
just some thoughts as I have pulled mine about 3500 miles so far
I want a volvo or pinz in 6x6

I love those things very very cool stuff