MS, in any current form, is archaic compared to the stock Focus ECU programming.
There is computer software/cables out the to tune Fords, but it costs more than the tuner and tune itself.
Odds are if you can't afford a tuner/tune, then you don't need one. Quit being a cheap ass.
Don't "think outside the box".
There is no box.
Do it correct, or do it twice.