Well, my brother's brother in law is a boilmaker and sheet metal polisher. He does alot of work (building fuel cells and chrome piping for turbocharged vehicles coming out of JPC's factory) so I know who could build the fuel cell. I'm just wondering if we HAVE to hack the spare wheel out and make a flat flooring in the boot and just do like a drop tank underneath... OR do we keep the spare wheel well and build into there... than again, the litre displacement is bugger all in there... maybe 40 litres, I'd say. I'd be opting for a 60 litre at least. That exercise I would do with the future of a high performance engine in mind so and upgrade fuel system won't be such a drag to try and do, it'd be all setup virtually, except the fuel lines obviously.