Outdoor Natural Stone Tiling

I need a small outdoor area—just under 100 sq ft—finished with natural-stone tiles. The surface is still raw, so the first step will be proper preparation: ensuring a level, well-compacted base with suitable waterproofing and mortar bed for exterior conditions... (Budget: $1500 - $3000 AUD, Jobs: 3D Modelling, 3D Rendering, AutoCAD, Construction, Flooring, Home Design, Landscaping, Tiling)