Well I can tell you that a few people on our Dutch forum have done it for the Amiga Magazine which is also in Dutch.
http://www.amigascene.nl/modules/magazines/index.php/index.html Like you said, it's contacting all those people, that is going to be the most time involved.
If I may give a scanning tip, make sure you have an all in one that has got an ADF, that way you can dismantel the magazine and just lay about 30-50 pages in it and scan them in less time.
