Home made power strips


My question relates to making an electrical box instead of buying a "audiophile" power strip. Would there be a difference between buying a well-made power strip for plugging in multiple components vs a 4 gang box, four high quality outlets (Hubbel or Oyeide), common grounding or star-grounding, separating digital from analog, and mounting it on the wall (unfinished area). It will have a dedicated AC line. Other than a solid copper casing or another form of RF shielding, would I be missing something? I don't want to go to the trouble of making it if there are reasons no to (something I haven't thought of). It would be substantially cheaper. Thanks!
tgrisham
That hot box uses readily available parts for the steel componets. Right off the floor from the big box store. The conductor parts are open to your choice. When you tie into the romex supply clean those wires with fine paper like 800 grit.
Wagzel-Thanks for the info! I also am aware of B-P-T's PPC, $199 plus cord. I would still prefer to buy upgraded components and build it myself. I wonder if isolation from EMI and RFI in the box is important if the other AC cords are not shielded (most of mine are, PS Audio)? Where I live I don't seem to have much interference. Thanks again. All ideas are welcome!