I can do the sprint. Anything further could be rough, but I'd get it done eventually.
I can do sprinting, maybe a stamina system, food water and sanity systems (Sanity might be a bit rough), and a random item spawning system.
That's all I know how to do though. If you want entity AIs and stuff expect it to take me a month or so. I'm more of a modeller than a scripter, but I can definitely get the job you're asking for done.
Also, I need a bit of a break and this seems like it'll be fun.
GeorgianCanis#2929.