Mesh Splining Tool - Paid Help Required

Looking for someone to build me a mesh creation tool. Want to be able to draw meshes on a terrain for different parts of a golf course, ie. bunkers, fairways, rough, greens tees etc. want the meshes to nest inside of each other. Want to be able to draw it sort of node or spline type.

I’m also looking into these but don’t know where to find them.