Kia helped me out after a crash of my SSD on a wrong and busy moment. He was able to help fast, and gave good advice what to do.
On his advice we used a SSD from another Macbook and installed a new big HDD in the other MacBook.
I am up and travelling with a good and fast SSD and the family/photo Macbook has gained a lot of extra disk space.
Will take his 24/7 monitoring service, to prevent a next crash.