Moileortho, I am also interested in your filler tube routing and any additional information that you can provide regarding the Jag fuel filler you used.
Off topic a bit but I would also appreciate more pictures of your exhaust routing over the rear axle and past the fuel tank as I am going to have similar space constraints.
That's a cap from an XJ6 - any year up to 87. I found mine on Craigslist for $25 and had a locksmith cut a key. You can find them on Ebay as well. I used a set of tail pipes I found on Amazon, Flowmaster 15802 Prebend Tailpipes - 2.50 in.
