mate, i have a 1.4rt n have owned it since i was 19 three years ago, untill last week i bought my first valver, damn it was worth it!what a wait but what a car!!! sorry that was totally unrelated but i can see where ur comin from, i dreamed of the valver from day one and strived to make my 1.4 look the part!
its true, all front end parts can be changed for valver ones, although cuz wheel track is narrower in the 1.4 filling the 16v arches uve put on might require spacers for your wheels part from that ur laffin!!
regards