kwf,
By all means! It's a pre-'73 Stovebolt so it's good to go according to our guidelines.
At some point we may get more detailed in our guidelines but I really don't want to go there...
The only guideline on the books is that it has to be a pre-1973 model year truck (includes vans, both regular vans and Corvair vans) and made by a manufacturer that has been affiliated with the General Motors Corporation (such as Chevrolet, GMC, Samson, Republic, etc).
Hope that clears it up!
John