I am again impressed by the speed of the answer! - thanks a lot!
AND IT WORKED!
I chose the manual way of installing it by preparing the dependencies, this time the installation went alright. My system does have a bin folder, so that was easy, too. - Man am I happy!
And you’re right, of course, there are some quirks in Linux Mint - but at some point, I had to get productive with my new DELL notebook - and kubuntu 14.04. had some problems with the driver, making skpye unusable, while 16.04. constantly switched the dual screen settings - so it was kind of choosing plague or cholera… 
but I have to say, apart from that problem now solved, I am satisfied with the system so far.
Thanks again a thousand times!