A Norvel .074 will probably give you the performance you are looking for-the slightly larger prop diameter means a much greater thrust output compared to an .049/.061. The .074 makes a lot of power-it's not a screamer like the AME's but makes good power at useable RPM's and throttles very nicely. Very hard to kill the engine at low throttle when doing aerobatics too.
I'd be looking at an .074 based on your light 3D requirement. You won't confuse it with a .40 sized 3D plane but it will be way past vertical with a light build.
For a nice sport aerobatic plane, look at the SureShark. RainDave kitted them for a while, then Flying Models offered plans/parts. Quite a few were built here on this forum-I have the kit for the .049 version as well as the .15 size and they are really nice.