Simon at Sifab made me a new fully baffled fuel tank, with internal trap doors et al to prevent fuel starvation if ever I took the car on a track day. The tank is built to original dimensions and I needed a new one as the old tank was a fuel cell and has since been sold.
Keen to keep things as per original spec, I made up a 2 part wooden floor which bolted to the chassis rails. The fuel tank then sits on ally runners that I fitted to spread the load more. Fitting the wooden floor wasn't really that difficult but siting the tank on its runners and then bolting it up was a very long winded job. Anyway, its done and it looks great!