Its quite hard to find some good level designer and on top of that its also a very time consuming task.
Combining indoor outdoor elements makes it even harder.

I am not sure if you can afford the "amount" of expert you would need for your task.

Also when requesting such things a levelmap or sketch would help to determine the scale of the work. Some top-down view, a few notes and a few more infos would do the trick.


cheers and have a nice one