I'm looking for somewhere I can get aerial map files for exclusive offline use. Essentially I need aerial files (JP2K, GeoTIFF, etc.) that can be purchased or acquired and hosted on a private offline server.
I have used NAIP aerial files in a past and they have worked great but they don't have coverage in the area I am interested in. I need the files to have at least the equivalent resolution as NAIP. It also can't be a subscription service it needs to be a one time payment to acquire the files that I need.
Preferred resolution is equivalent to NAIP so 1-meter ground sample distance (GSD), I would like the files to be <5 years old but that can be a little flexible, and the area of interest is Aberdeen Proving Grounds outside of Baltimore.