Free time was scarce however at least i managed to find some of the obvious missing parts without opening the engine or gearbox at second hand parts stores in Germany. Also managed to find another incomplete motorcycle in Romania, that had no documents, so it was good for spare parts at the moment.
I found some more cylinder heads in better condition, another gearbox, more cylinders, a front fork, more fenders, another frame, another engine block, another tank in a even worst condition, and some more small parts.
Overall i was almost satisfied with the parts i had, so all i needed was time to start a pre-assembly. I was still missing everything electric (had some parts that did not seem to be from a BK), a sidecar, fork stabiliser, good seats, some springs, and the other parts i still did not know about from inside the engine/gearbox/transm.
My garage had no storage shelves at the moment so it started to be a little chaotic in there with two BKs and my Yamaha cruiser.