I found a kiln on craigslist I'd like to purchase, however, I'd have to drive several hundred miles to pick it up. (It's a very good deal. $850 for an L&L Easy Fire E23-S-3 along with a slab roller and shimpo 1/3 hp M250 wheel). Therefore, I want to be sure its in working order before I drive all that way. I've attached a photo of the interior of the kiln. Can anyone tell me if the condition of the brick and elements looks up to par? This is my first kiln so I'm not exactly sure how it should look.