Barney only the tires are offered through Michelin Advantage. Some dealers charge you for the tires, others don't. Regardless, FMCA is going to charge you or adjust what you paid, if the store charged you. No big deal either way.
The TCI tech that changed mine was a road service guy. So, he changed them in their lot only using the charnger in the shop. This is a high volume store with plenty of truck bays. No complaints on the work done.
The date code is late April, not bad. The ones I had put on last week were 3513.
If you want different valve stem configurations, you should probably buy them beforehand.
Equal or weights will get you a lot of opinions. I had Equal in the steers (the new tires). All others have weights.