Congratulations! Be sure to give the system a couple of hundred hours to break-in. Nothing special you need to do, just enjoy as normal. The sound should improve with every use. Please keep us posted with your listening impressions.
You can not beat WA6 for $699. It can drive T1.2 to its potential and more. Step up to WA7 and you'll get a high-end DAC too. http://wooaudio.com/products/wa6.html http://wooaudio.com/products/wa7fireflies.html
You can choke from eating... Congrats! keep us posted on how the 1A sounds. I'm rockin' 1Z + PHA-3 + Z5 running all balanced. The weak point here is the WM cable to PHA-3. There should be a Sony / Kimber version.