TCODI, You did a nice job of building You tank, Dont think Im trying to be smart, IM not! I do have safety concerns for You, because of the way You built it. You left yourself no Crush area, in case you were involved in an accident. That could be very dangerous. In a race car or stock car the tank, (fuel cell) is always suspended within the frame rails with its own mounting brackets allowing sufficient room for crush on impact ,and sometimes thats not even enough.You've worked hard, done a good job and Im sure you didn't want to hear this . You proberly will not want to change it, but for any other members who see your tank and are encouraged to build their own tank,REMEMBER, the Crush area .It might save Your life!