Vintage-Modern Cowhide Leather Trunk Bag

I am looking for an independent leather artisan to bring a modern architectural handbag design to life. I need one flawless, physical prototype of a structured mini trunk bag to use for a luxury pre-order campaign.
​Requirements:
​Must have experience cementing and sewing rigid Texon board to create precise 90-degree box corners.
​Comfortable working with hair-on cowhide and premium genuine leather.
​Skilled in luxury edge painting, creating accordion interior gussets, and installing metal hardware (corner guards, locks, and purse feet).
​This is for a single hero sample, with the goal of hiring you for small-batch manufacturing once the pre-orders are funded.