I have always wondered why nobody reproduces the stock 47 and 48 saddle tank. Its a great location, its tucked inside the frame, fills easy, east to remove, and the filler looks natural in that location. The only drawback I could think of is with dual exhaust on a V-8 engine. When I do my 51 truck, I am going to build a 48 style tank and install it that way.
Ralph