I have already seen 2 or 3 threads on the front page with you asking for help.
Essentially what you are looking for here is someone to code a whole gamemode for you and then you will take 50%, if not all, of the credit.
Also you need to realise that the issue with DarkRP isn’t going to be fixed with nice scripts or whatever; the key gameplay mechanic in DarkRP is killing other players. That’s it. To get something done, you usually kill another player. There are very little serious RP opportunities as a result of this. If you want good RP, then take a look at OpenAura.
(Personally I enjoy DarkDM)