If this is who I think it is I used to own the car. Some of you may know it as it belonged to Dave Dean before me. One of the "Marguerita Motorsports" cars that ran at MO and Nelson Ledges. White GSL-SE with a blue #5.
Panasports with Hoosiers so not much to do there without spending a fortune to save a couple pounds.
I told him the same thing about the fuel cell, probably won't save.
The only suggestion I came up with was to gut the passenger door and add Nascar bars.
No gauges as all it has is a Stack dash.
He's in good shape but I suppose everyone could lose 5#'s.
Other than that, sell it and buy a 2nd Gen since you cut your teeth and are perhaps ready to move up!