Hmm what wheels to get all depends on how much money you are willing to fork out... Wheels that I think can look good on a DC5 are Work Emotion CR Kai, Work Emotion XD9, Desmond Regamaster EVO, Volk Ce28n, SSR Type F, Advan Racing RG11, Enkei RPF1 or something from the Buddyclub P1 Racing series.
The cheapest in this lot would probably be the Work, Enkei, and buddyclubs.... I won't recommend any knockoffs/fakes of any of these wheels, but such things are available if money is tight and you know what brands to look for.

P.s Reckless is suggesting you don't JUST stop at manual conversion but just K24 it while your at it. Conversion of transmission is a pretty major thing in itself.