Modern Design & Rendering for Proposal

I'm in need of a professional who can design and render the attached sketch in a modern style. The purpose is to impress a client with a high-quality proposal.

Looking for an industrial designer.

We are looking for a high end design for a porta potty.

Stage 1:
minimum 3 exterior renderings
Need an exterior rendering
Exterior:
48x48x 96"h
sides and rear are simple panel
front wood accents with door, a modern look
metal trim corners
vents in door at bottom
solar panel roof
roof exhaust tube at back corner
sign area for male and female
lip on top of door to prevent water from getting inside

Stage 2:
minimum 3 interior renderings
interior:
modern looking interior
square shaped toilet + storage tank at back
sink station on side
paper towel holder
toilet paper holder
mirror
urine area
coat hook

Key Requirements:
- Expert in modern design principles
- Proficient in 3D rendering software
- Ability to highlight metal and wood finishes effectively