Nice set Christian.
You admitted you do not know a lot about Rogers, so you may not be aware if the snare drum parts are all there or not.
Judging by the photos, I am guessing the snare frame is not on the drum, and in all probability, you may not even know what the snare frame looks like. Sometimes a missing part is not obvious.
If you do a quick internet search you will find photos of what the frame looks like, and what it does. If it is missing, you will be able to find one for sale. They are available.
A dynasonic snare should have the snare frame , even though the drum could be used without it.
Dynasonic drums without the frame are considered "incomplete". It is a small matter to make it complete.
If the frame is present, and you have the correct original or replacement snares, then you are good to go!