While I can't provide a translation myself, I do have experience as a historian and a translator that may come in handy. Finding good resources isn't too hard, though it may take some legwork. One obvious option is going to an Ethiopian Church parish that is accessible to you and asking some of the fathers there. A little good will, a coffee invitation and a genuine interest on what they want to say may prove enough to get them to sit with you and help you translate a bit.
Of course, finding ethiopian ministers may not be an easy task, so your next best thing is your local university. Browse through their langauge, literature, theology and history programs and you may just find a teacher who may be able to help you. Approach with good manners and showing interest, and you'll see most of them will be pleased to tell you as much as they know (heck, they make a living out of it).
Last but not least, search for language specific forums on the web. Local contributors may be more than willing to provide translations, and the forum's archives may have some on storage already.