I would not worry about the VVT, if the alpha can't run it(and I don't know either way) it has only two states it is either ON or OFF, so a simple switch could be utilised, would be much cheaper than getting different ecu to run it that does VVT etc.
I would suggest a micro switch on the throttle linkages somewhere.
As to whether they fit or not I don't know but will ask some people today who will know, they have used zetecs in the past but now only use duratecs, but getting seriously good power and torque from these.
tabetha