Can't raise your effective druid level higher than your character level. Doesn't work for this build, as we're already over /double/ the guy's character level. You could try applying it first, but that's just lame. =P
You can choose a 3 level higher AC, and have your normal effective level. Like, FLESHRAKER instead of wolf

I have no idea what RTA means, but I'll take a stab in the morning.
Ranged Touch Attack