Narrow "Stock Location" Mount Fuel Tank for 1968 Dodge Dart?

I think if you search back, there is a coupla posts with members finding a good muff shop that "wanted to" make 3" work, and did.. Was real nifty sneaking pipe out over the spring back in behind the tank, tips in stk, or very near stock location.. really fine pipe work by some fine craftsman.
.. IIRC..