Hey thanks a lot - will try to see if I can make this work!
OK - these instructions were very helpful, I managed to setup pycrypto very easily. Only difference is that the article is a bit outdated and uses the 2.1.0 version of pycrypto.
Here:
https://www.dlitz.net/software/pycrypto/ you can find the latest one (2.6) and the instructions are basically the same. You download and uncompress the file, run terminal in the path of the uncompressed folder and use python commands (of course you are supposed to have python installed before that) for building and installing the package.
Now let's see if I can send some MSC...