You just have to start a new call for donations in a new thread, I think!

Maybe Vladimir Levchenko would be willing to participate in the donation?
About OpenInkpot: could you activate the option to choose between FBReader and CoolReader for prc/mobi files as well? Some big prc files work wonderfully in the April Lbook firmware, but not in OpenInkpot. For example the German version of Wikipedia 1.6 of March 2005 (the biggest one that works because it comes in a single file) available there:
http://www.axelschaefermdb.de/service/wikipedia.html