Tony, the stock tank was removed to facilitate installation of part of the roll cage. With the installation of the cage support cross member the stock tank would not fit. So after rereading the rule book again

we decided to mount it in the luggage well and cover it. Currently we don't have time to do what you suggest.we are trying to get the car to Maxton in a couple of weeks so it can go through tech and maybe some shake down runs as this is a new build for us and my wife needs some seat time before we head to Ohio next year. your idea to fab a tank to fit that space occurred to me yesterday although I did not consider that the void left from the stock tank would have that much effect on the car. I learn something every time I read this forum. thanks for the input.
Frank