Get a Byron Pitts or Christen Eagle for your G-62. It will fly it nice. I have also seen people flying the GP Pitts 1/3 Scale ARF with this engine.

As for the Ultimate, I would not recommend a .32 engine in it. At least not if you would like to do some 3D or want to have unlimited vertical. If you ask me, I would not buy it at all. I would go for the Carl Goldberg Ultmate Kit or ARF. I have one (built from a Kit), and it does whatever you want (can be as smooth or wild on high rates) with a OS 120 Four Stroke. Awsome plane ! I am building right now another one with a Webra 120, Cline fuel regulator and Perry Smoke system. Hmmm....... can hardly wait to fly that one.
If you would like to stay within the .40 size, then I strongly recommend the Global Ultimate with an OS 70 Four Stroke. Very nice ARF and Engine combo.
Just my $0.02