[Sew_Sumi]

You need to post to the link below, but really, you are going to be paying for anything close to what you are wanting.

https://sampforum.blast.hk/showthread.php?tid=447813

There will probably be some older gamemodes that are "simple", but many will be out of date, use old methods, and will generally be lacking in anything like features or expand-ability.