Thanks for all the brutal replies. Lots of shade, but I still like the idea. This business model is not without precedent.
Food for thought - I can rent a Leica M11 camera (MSRP $8000) from Lensrentals.com - $67/day for 7 days. They don’t take a deposit, but do offer optional insurance to limit my liability. It’s shipped to my house in a Pelican case (roughly the size of the Tambaqui Pelican case) for $25 each way FedEx 2 day.
Could I purchase the Leica from a retailer with a 30 day return policy? Yes, but I’d be putting $8000 down and be expected to follow through. I’d rather rent it for a week, decide if I like it, then purchase preowned for a $3000 discount.