The Syvecs is overkill for a CVH, most if not all of the options will remain unused for the average CVH install.

If I were you and you are dead set on changing then sell off the Cossie stuff (I'm sure Jano will buy it back off you) and go with whatever your nearest reputable tuner recommends, that way you have local support in case of problems which lets face it often occur even with the best will in the world, no system is perfect, no installer is perfect and 30 year old Fords are definitely not perfect! lol