Remix and Build Plate of Wall-mount Spool holder with quick release

This is a Remix of:
http://www.thingiverse.com/thing:969358
and
http://www.thingiverse.com/thing:1051124
I want to give a huge hug to the Designers :x

I made a buildplate matching my needs to print it in one go as
Repetier Host is crashing all the time when placing multiple objects
one over another.
Included are some spare parts - if something would break in the future
Please ignore the Thingiverse Preview of the .scad file - it does not know anything about the included .stl files