Deathrun server

Hi i just got a server and i cant really code a game mode from scratch so i was wondering if any one could code some things for it. I was just going to uuse the fretta deathrun base and add in some extras like a shop and points system to buy like power ups and trails etc i know it is probible basic but if any one could help me i would apreciate it and you will recive admin on my sevrer maby sum cash but havent rly got any right now.