I think most people set the bags at a comfortable level and leave them at that mark. From time to time, adjusting air from a portable 12v compressor did the job when I had AB's in my previous TC, however the bike pump will work.
If I did add a compressor, it would be hardwired with a switch. The compressor that I removed was only the size of a C battery. I could not believe the small size compared to its very large price tag.
Have a spring shop check your springs. My shop wanted to insert a spacer to give me more height when they saw the AB's didn't do it. Doing that would offer more height but not make the ride harder as if to add a leaf to the pack.
You could also look into a slightly larger diameter tire working off the same wheel.