Was looking on the orange site today and Barr has 2 observer positions, one in AL and one in TX, says starting pay is $19,500 for licensed pilots. If you don't meet the mins at least it's pay while you built the time. Like most places, I'm sure Barr and the PIC allows the observer (if qualified, to fly any non rev lines) so you could build time that way. I'm not at Barr, but just on my lines alone I have probably 5-10 hours a week deadhead that I would be more than happy to let the observer fly, if we had one.