yep, need a new engine, i did the swap.. i dont know if its possible to do it on a non-vanos engine, youd probably have to get a whole new head and ECU
but, as I thought the same thing as you, you should really appreciate your non-vanos for what it is, honestly, i felt that the non-vanos was MUCH more responsive and had much more power, because you know, vanos isnt only designed for power, its designed for fuel consumption too