1. commuting is frowned upon. not necessarily prohibited, but you better not be late for your run, because you had troubles in transit.
2. TDY is TDY. if you bid system TDY, then you should be ready to travel the country and be gone up to 3 weeks at a time. some bases have a base TDY, but not all.
3. turbine pay varies with equipment. starting 99 pay is around 24k. starting sa227/1900 is 36kish with the retention bonus.
4. the schedule is generally monday night through friday or saturay morning. it varies depending on what kind of run you are assigned to. reserve flying shouldn't be a problem. i can think of two pilots off hand who flew the reserves and were employed with ameriflight. one flew c 130 hercs and the other was a blackhawk captain.
hope that helps.