yeah i think the biggest cost per item is the lights + the HIDS
i think you can go with aftermarket HID's but each headlight assembly is $800 a piece and you still need to fabricate/buy custom brackets to make them fit mechanically. you could probably get the na1 bumper cut and molded, but after that much trouble you'd be better off getting the 02 lamp + SOS kit + any bumper/hood combo like stated above, i really want the 02 upgrade, but i'm poor atm and cant do it right, so i'll probably stick with my flip ups for now :biggrin:
some people have done it on a budget, like speedyizzy i think, but you have to be creative about sourcing parts and getting the work done, paint/install will factor in $1000-2000 to be conservative i think,
i think that at the end of the day, i'd rather get a na1 raw CF type R hood + SOS stage 2 upgrade + stacey's side skirts + nav pod etc, i think all those added up to less than just the 02 headlight upgrade, so if you think about it, it would take about $6k + shipping + $1-$2k paint/body, you could buy alot of other neat mods for that :biggrin:, but yeah everytime i see an 02 i get pissed off and want the 02 headlights again =) good luck