actually I was wanting to raise it just above flush...say about 1.5 inches. The tank is 7.5 thick. It's a donor aluminum.
The frame is right at 6" with the 7.5 I could build a bottom brace and set the tank on straps....if I have a couple of inches to play with between the top of the frame to the bottom of the boards.
Not a great picture, but this is what I'm working with...and believe me it aint that ugly anymore...I need to get a new pic...
http://flic.kr/p/9m4TV9thanks for the reply...