Yes, you have a level 10 bolt. It is missing the foamy. You can use it without the foamy, but should get one for it. It will prevent the balls from rolling back into the cavity which will allow the next ball in the stack to push farther into the breach. With smaller balls these days, you don't want to allow them to hang down into the breach. The slower forward movement of the level 10 should protect against breakage, but some fragile paint can still get cracked, which could result in a barrel break during the shot.
You should get some spare carriers if you don't have a full set. The first time you need to replace the powertube oring, the different carrier sizes will be needed to properly adjust the tension on it for the level 10 to work properly. Get a complete oring kit too. You will need it at some time. It would be a good to replace all the orings right off the bat just to be sure everything is fresh and new. Get a new red bolt spring. You won't need it right away, but if you shoot any amount at all, the bolt spring will wear out. Its usually somewhere around 30000 cycles.
The intelliframe is a nice crisp trigger frame. You don't need to add the micro switch.
I prefer to remove the expansion chamber and use a gas through grip instead. It makes the gun less bulky and lighter, but it isn't critical. The gun will work fine in its present configuration.
Except for the Automag in front, its usually the man behind the equipment that counts.