[Mgs] Whitworth Flare Nut Wrench?

[mgmagnette at aol.com]

Anyone ever seen a source for Whitworth flare nut wrenches?  Regular whitworth
wrenches are all over ebay, but not flare nut wrenches.  Thinking perhaps the
brits have another word for flare nut wrench and that's why I can't find them?
I have an old XJS that has Whitworth brass compression fittings in the fuel
system.  The brass nut rounds off before the ferrule has a chance to deform
the tube.  I've elminated most of these stupid compression fittings, but there
are two into the gas tank that cannot be removed without welding the tank.

-John