One: Diablo really doesn't feel the Focus market is worthy of their continued support. What that means is that what they offer right now is all that we can get. No FI burns or special programming. They can raise speed limiters and rev limiters, but much over that and you're SOL. Go with the Superchip and you'll be more able to go with a special tune.
Two: Now that I have trashed the chip, I have a 4 bank chip for sale that will be programmed by Randy @ FocusSport for $190 shipped. It won't matter what your code is, Randy will reprogram it for you. I'll send it to Randy and he''ll send it to you. I have had it for about 6 months, as I was testing the SPI chips for FocusSport. I have finished with my long term report to FocusSport, and have reinstalled my "old" chip as it has all the changes I needed.
You still don't have anything to tune for a chip with the mods you have. So, if you get one, you would probably just get the standard 91+octane/advance timing program which gives you some gains but probably not what you're expecting.
If you can, the best thing to do is to go to a shop that sells or tunes chips and then maybe they can help you out.
Well... a few items that would make use of the chip would be:
Cams, cam gears, larger f-injecters, 70mm MAF, ported head, etc.
The chip is needed when your stock ECU can not accommodate those type of mods.