Where are you located in GA? I live in GA as well, and completely converted my wifes accord 2 weeks ago with no problems. All the o-rings would need to be replaced in the entire system, or the 134 could eat out the old r-12 o-rings, cause leaks, and everything have to be fixed all over again. Twice the work.
If you want to do is correctly, replace every o-ring, and replace your TXV- Thermo-expansion-valve under the dash connected to the evaporator core. If you dont, it can also become clogged after the conversion and cause troubles, resulting in more work.
If you'd like me to do it- just shoot me a PM.