Hi Andy....your PM's cannot be replied to for some reason, so will have to here
Hi Andy.... the tanks I do are 2mm aluminium and TIG welded, are just under 8 Gallon, fit the book/Saturn rear end, have a built in baffle and surge tank with outlet, filler, vent and return.
I can also do the tank with cut out to accept mx5 sender/pump unit
price £125 delivered....will need around 2 weeks, if you are interested just ppal me
kmkp88@gmail.com this my email addy too
regards
Kev