The tag info is already posted, up towards the top of page one. It is the same as yours. The car has the 612th Virginian body. Unfortunately, the company was starting to build to order at this point so that does not mean the 612th one off the line.
As I said earlier, the doors do NOT swap out; Pages 228 and 232 of the 1949 Kaiser-Frazer Parts List show that Virginian doors swap with Convertible, and the sedan doors are different.
You really need the parts book to avoid frustration and a lot of dead ends during restoration.