There are dozens of ecu's you could use. Some of which can be purchased with looms ready to go, or with minimal wiring work.

But what is your budget, and do you have any ability whatsoever to install parts yourself ?

Unless it is free, I really cant see any reason to use an original equipment style ecu that cannot be easily programmed by anyone.

DTA, Adaptronic, Haltech, Link, Vipec, Wolf, KMS, AEM, Motec, Syvecs, Wolf, or for the cheaper DIY opensource based products, VEMS or Megasquirt.

Both VEMS and MS can be bought either full on DIY build and wire yourself ( fuck that ) or as ready to go product with complete wiring looms for an almost plug in install.