have you asked what is needed to fit a frs engine in on here?
the engine and box drop straight in, loom will need changing along with ecu and maybe the dash as they are canbus iirc.
no need to change subframe afaik.
if you're planning on blowing cash, may as well just build a well spec'd zetec turbo with a frs gearbox, there is a point where the power becomes too much without expensive tyres etc. though.

p.s. omex is pretty good, but would need vvt control, i think omex 710 can do that (don't quote me on that though)
plenty of other ecu's though, so find a tuner then go from there.