Looks like it may be a dead end...I tried their # (was 770-434-5686) but was disconnected.
I had no luck with 411 either but you may be able to see if perhaps they have another number for their addy which WAS 4000 Lee Rd S.E. in Smyrna. Maybe they have another yard somewhere if they've closed (I hope they just moved!)
I'm thinking that unfortunately, there weren't a lot of takers of MB parts in that area and they probably shut down. I used to love going over there about 2 years ago and chatting with the guys and they'd really let you just go for broke looking for whatever part you wanted off of whatever car. They really didn't have SET prices and although they knew what they COULD charge for some things, they'd bargain with you which was soooo cool.
That in itself probably killed them in that area because every time I went there, there was anything but a long line of folks trying to get parts there although they always had 3-5 guys there on hand to help the owner with parts,etc.Was pretty much a mom and pop operation with the office in a huge "barn" like structure with a black and white TV and coffee maker on a table and old magazines and some pups (they were pups THEN) everyone played with! Man, I'm starting to tear up a little...
OH well, I'll keep looking around for ya
Alan