I'd look elsewhere.....
for IMAC flying. This bird is great for 3D, but would not be the best IMAC bird in my opinion.
I'd look at a Goldberg Extra, World Models Extra, or the Kangke Cap 232 (This may be a bit big for your engine choice). Your options really open up with the purcahse of a OS 1.60 instead (GP 1/4 Giles, WM Extra, Kangke Cap, DP Extra, Carden 26 % Extra).
The Edge is on back order as well........
Just my thoughts......
Pug