I know a place that could make one without issue or difficulty. They build skid steer parts, snow blades, hydraulic forks etc etc etc.
They're mennonite manufacturers of heavy duty farm etc equipment.
You can check their site at www.martatch.com
If we get them somewhat accurate plans (I think a 2 bike folding trailer would be awesome - like 2 stingers in tandem side by side), I could approach them, as I have a business relationship with them already.
my friend, the plan itself is more than half the price that we pay.... R&D isnt cheap. Do you go to Chenzhen to ask them custom make you a cellphone?
I doubt they would beat the price if they have to do reverse engineering from just pics. Bring them a Stinger and tell them to duplicate it,