Just had a new fuel tank from JK. Quality and build seems fine, cost £210. Website does say you may need to enlarge hole in floor for outlet to fit correctly. I had to cut the standard hole in floor an extra inch or so larger towards engine bay. There is also a drain plug that you don't get on the standard vw tank, I needed to cut a hole for this also, or the tank wouldn't sit correctly. Pretty happy with it, usual quick JK delivery and good service.