As others here have said, search Internet for "4x6 bandsaw mods".

The "magic" will be to find a way to increase quality of the saw without increasing price, or increasing price just a bit.? Things like the grade of bolts and nuts used for example. I had problems with blade tracking on my HF saw and found the factory bolts in the upper wheel adjustments were all stripped. Also, the plastic adjustment handwheels for blade tension and movable fence adjustment broke quickly. Adding some electronics to sense blade temperature and adjust saw speed automatically would be cool, and to sense if blade stalls.