I see your post is about 15 months old, so I'm not sure you are looking anymore. I have a mid '80's Tarm 502, burned wood in it off & on over the past 20 years, and recently installed the "official" Tarm coal baffles. I have lots of photos and would be happy to post them or e-mail them to you. I'm a big fan of Tarms - they are well built and flexible as to fuel, but the owners manual doesn't begin to answer a lot of the questions we users have.
Let me know if you are still interested.