DIY Handbag Prototype Development

I need an experienced leather product engineer to develop a prototype for a DIY crossbody handbag. Key Requirements: - Use of full-grain leather - Clasp fastening - Crossbody style Ideal Skills and Experience: - Expertise in leatherworking and product design - Experience with full-grain leather - Knowledge of handbag construction and fastening mechanisms - Strong prototyping skills Please provide samples of previous work and a detailed approach to the project.