HDPE Passenger Work Boat Design

I need an HDPE work boat designed primarily for passenger transport. The boat should comfortably accommodate 10-20 passengers.

Key Requirements:
- Design for HDPE construction
- Safety features for passenger transport
- Stability and comfort for 10-20 passengers
- Efficient design for specified water body (to be confirmed)

Ideal Skills and Experience:
- Marine architecture or engineering
- Experience with HDPE boat design
- Understanding of passenger safety regulations
- Proficiency in designing for stability and comfort

Please share relevant experience with your bids.