Here's an EDShipyard link to an Anaconda fitted with nothing but fuel tanks, advanced discovery scanner, and a 6A fuel scoop. The jump range is actually a surprisingly high 22 ly, and time to fill the 432T tanks a surprisingly low 8 minutes. You could swap one of the size 6 tanks for a 6A shield generator, which is lighter than a full size 6 fuel tank, and add some weapons without decreasing the jump range.
I feel a surprising amount of glee at seeing this.