After my previous post I hooked the charger up to the Rx and let it go for about 3 hours. I then finished up the conversion and went flying.
WOW I am one happy camper.

The conversion was a complete success. This just might be my new best plane. Very smooth flying, decent speed, and decent power. I flew it for 5 tank fulls. Here are the original and the conversion specs.
Great Planes ElectroSTIK origannly speced:
Wingspan 52.75"
Wing Area 589 sq in.
AUW 3 - 3.5 lbs.
Wing loading 11.7 - 13.6 oz/sq ft
Length 45.5 in.
Brushless motor equivelant to a .25 - .30
2200 mah 3s
Tail Dragger
My New conversion specs (same physical size)
AUW 4.25 lbs.
Wing Loading 16.6 oz/sq ft
Glow Motor OS .40 LA
Fuel Tank 6.75 oz.
12 + mins flying time @ 75% of the time WOT
Tricycle Gear.
I was able to acheive proper CG by installing the Rx battery in the fuselage just behind the trailing edge.
This conversion was such a success that I am now going to start on my next conversion. A Maxford USA electric Gee Bee "Y" w/ a 39 in wingspan. Will post a new build thread as that progresses.