I agree, check the brakes, drive it.
I know that modern brake linings can sit for quite a while before (if ever) needing replacement. I understand that our brakes have to be relined,correct?
So that might take me some time to find someone, good, that can do it.

Around town, for work, I might actually load her up to capacity. I'd like to show up on site with 9000+ on the bed.

Not close to AZ, sort of. I'm in the NM Rockies. Obviously I won't be loading her down to often.

This will be the oldest truck I have worked on. I am extremely excited and, a bit worried. whatever happens it'll be fun.