Am looking for either a turn-key server software package that lets me run my own snipe service or one written in c# that I can modify. After looking through countless sites across the internet, I have not found a software supplier for this. Any help you can provide would be appreciated.
I don't think you will be able to buy snipe service software off the shelf. Elements of it - such as the membership system - could be drawn from standard packages but the core sniping service would need custom-coding.
Have you looked at getting it written for you via Elance, rent-a-coder, or other similar site?
By the way, there are dozens of sniping services out there - some of which are free - so I wouldn't recommend entering that market!