A quick google search came up with this-
http://www.mechanicadvisor.com/ga/atlanta/engine-repairYou can also check on Gearhead engines and Jasper engines. Both have a website, and can suggest a shop near you for installation. You want somebody who's qualified, so check to see if the shop you pick has ASE trained mechanics.
BTW, is the head damaged, or just the head gasket?
Edit- I meant ASE certified, which mean the engine tech has passed a rigorous test for the certification. They have to re-test every 5 yrs.