Looks like i found the first ever IoT Node and its from the CCCP - or may be not.
Putting the PCB from @douglarue and the TTN Node Workshop from @galagaking1 to work, i added the adafruit ultimate gps and the adafruit solar controller together with some cheap solar panel (found in the BARGAIN basement on this board) and a lipo akku. Put it together add some stuff like a switch and button and put it into a box which you style like you want. Now i got a perfect little TTNMapper box, thank you @jpmeijers for your incredible commitment in this community.
Now i have to run a test how long it will take till someone notice this box lie around and call the police...