i think i could do it myself i have a nvq level 1 in mechanics(but anyone can get one of those if u can spell your own name)
as iv done a full engine and gearbox rebuild on a quad bike engine(which had a cam chain)250cc twin and its still running.
and iv done cam belts on 1.2 clios(8 valve)a few times, i could do 1 of them with 1 hand tied behind my back
but i have not tried a twin cam or timing chains on a car.
i have watched a cam belt being done on a evo 8 but that was a few years back when i was a lad at 17 now 25(i used to work for a rally team)
if any body has a step by step guide or photos,i may give it a go myself.
nice 1