The fuel tank required earthing, and whilst I was at it I installed a non-return valve (oriented so that outflow wouldn't occur in the event of a capsizing) on the fuel return line. The cable tidy is glued to the fuel tank by the way - not riveted or anything else that may lead to fire-related bumfoolery.
I've still got to protect a few edges with rubber trim (I need to get more) and all the bolt heads on the front suspension have to be covered with protectors. And I think I can improve on the alignment of the headlamps - well, from utter guess to educated guess anyway, but I'll worry about that later.
I'm also waiting on some IVA guidance from Westfield in case there is something I've missed or don't know about. They're putting one of their built cars through the test today so that ought to be enlightening. I think I'll put in for my test anyway - by the time a date comes through I should have addressed any outstanding issue. So next comes some form completion...