You really don't need a POD unless you wanna have something else on the jobsite blocking the driveway or wanting another object onsite you wanna have to walk around. Just a side note tho , make sure you turn off your inverter and turn the breakers off before trying to unplug the PV's , ground then the panels. Not sure what type of system your goimg to R/R but being careful removing the panels without damaging the panel and micro inverters is obviously pretty important and any damage can affect the complete systems function.
I recommend creating a diagram showing the panel arrangement and number each panel on the diagram and attach that number to the panel with masking tape. Number the panels and the same with the micro's and store them in a manner that they can be installed again beginning with #1. Also I recommend buying new flashings for the stand off mounts. If possible I would also number each rail beginning with the rail closest to the gutter and ending with the rail nearest the ridgeline. I have never been a fan of using the same holes to reinstall the mounts so depending on the code in your area you can move the mounts a few inches above the previous holes.
Here in SoCal the panels have to be arranged a minimum of 3' off the rake and ridge and a minumum of 2' off the gutter , 3' away from any roof penetration such as vents , pipes skylights etc. If your building code calls for these requirememts or similar then you can move the mounts providing the panels are still in compliance with code after they are moved. Make sure your still in a rafter and each standoff mount is moved the same for the full lengrh of that rail. R/R solar panels , rails and mounts is simple but what makes it less of a headache and a higher percentage for success is to be very organized with diagrams etc.
It's probably in all roofing contractors best interest to become familiar with solar systems , components , functions etc. Solar systems are coming your way and those who are onboard are the ones who don't have to get caught up. Roofing is constantly adding to and taking away and its up to the contractors to keep their company up to speed.