We are looking to recreate a historically-significant truck for Cummins. It is an Indiana-branded truck made during the Brockway-Indiana period from 1927-1932. Cummins obtained the truck in 1930 so the actual truck was likely made in 1928-29, but we do not care about the exact build year as long as we find a truck with identical or near-identical appearance.
We do not know the exact model/rating, but it is a heavy-duty, long frame, single rear axle. When we got the truck in 1930, we put a 4cyl Model U engine in it and drove it coast-to-coast on $11.22 worth of fuel ($165.73 in today's money). We then remove the U and put in Model H engine and drove it around the Indianapolis Motor Speedway for a non-stop distance record. After that, we drove the truck around, usually with our 1931 Indy Race car in the back, to various shows and locations as a marketing tool. Then the truck disappeared.
Our desire is to recreate this truck, complete with a Model H engine. This would mean replacing the engine and repainting whatever truck we get, so we would prefer a truck that looks correct but isn't historically 'perfect'. We're historians too - the last thing we want to do is ruin a historically-accurate truck to make a truck for us that, no matter what, will always be a recreation.
Finally, while this is for Cummins and Cummins is a large company with lots of money, our history team is not flush with cash. Our team is volunteers because Cummins won't pay us - if that gives you an idea. We will consider all reasonable offers (or donations!), but over-inflated offers will be declined no matter how great the truck is, sorry.
If you own such a truck that you're willing to part with, or know of someone who does, any help will be appreciated.