Required CUDA,C freelancer for Quote Searching: I am thinking of making a "Quake Expansion Pack/Quake Mission Pack" job

Looking for a rough estimate on how much it would cost to develop the Gameplay, Story, etc into a Free Quake Mission Pack/Quake Expansion Pack, For now I just wanna get a rough quote, the 'Expansion Pack/Mission Pack' will have its own story that is more based in a alternate universe to Doom's, but for the most part gameplay largely will remain unchanged, maybe a few tweaks here and there, the biggest change will be weapons as each weapon will need their own stats, behaviours, draw from a certain ammo pool, etc, you could call this a full fledged Total Conversion.

Skills & Expertise Required

CUDA C