I am a commercial interior designer but I am not familiar with all the modern Airstream models/finish packages. However, here are a couple of thoughts...
1. Your "professional cabinetmaker" should be able to help you ID the laminate & trim...if not, I would question their suitability for the project. They may be pros at wood, but not laminate casework - they are two different animals. Wilsonart is one of the most common plastic laminate brands out there and based on that and other's comments before me, I'm pretty sure they are who Airstream uses.
2. Here is a link to the
Wilsonart website showing all their current plastic laminates, maybe you can recognize yours. If not, post a picture & I'll see if I recognize it as another brand. (look under "High Pressure Laminates" you can filter options by "color" or "pattern" to help narrow it down)
3. Once you've narrowed it down - take a visit to your local Home Depot/Lowes - they have physical samples that you can see to confirm the match - if your cabinetmaker doesn't have a chain set.
4. From looking at Airstream's website, I'm guessing that the edge trim is a standard PVC "T-molding". Again, your cabinetmaker should be able to provide samples to choose from so you can match up to what you have.
5. What's the "part number" that they gave you when you called? It may give a clue that we can go on...
Not seeing your trailer, it's pretty tough knowing what you are trying to match.
Good luck, hope this helps!
Shari