The majority of 182's were sold with cup packs anyway, so your best bet is just look for one that has them already .
I've never driven a non cup packed 182 so i can't compare to mine , but there is a definite difference in the handling compared to the 172 i had .
Whether thats due to the slightly lower , stiffer suspension , the wider track , the wider Michelins i couldn't say ! Maybe it's a combination of all 3 ?