A Motec M600 seems to be able to do most of what you require, except for knock control. If you setup the ignition correctly in my opinion you do not need knock control.
You may need a dash from Motec in stead of the Stack one.
Download the software (for free) from www.motec.com and see for yourself what it is capable of. You do need to purchase extra options besides the standard M600.

Another option would be a Pectel ecu, something like a SQ6M.