That is the normal schedule if you are covering a UPS, DHL or FedEx run. And yes, you could do all of the above. (And I know of pilots who have done all of them. Just be sure if you get a side job that your other employer is aware you may be late or not show up due to diversion or broken aircraft.) The one consideration is if the time at the out station is when you are expected to get your legal rest, you need to make sure you are rested to do your entire run. If you are out doing activities instead of resting, there will certainly be questions if you call out fatigued when you get around to the morning part of your duty time.