To answer some of your questions. There is NO source code available for Ermine. There is the old source for Dingo about somewhere but I doubt it will be any good to you.
For information about the e-ink you should send the developer of lcd2eink a PM he might be able to give you some information.
All I can say is, good luck with your endeavours.
One thing I should add - plug 'serial cable' into the forum search and you should come up with the instructions on how to make one.
Last edited by ivanjt; 05-23-2012 at 06:17 PM.
Reason: add info re serial cable