I looked over the Great Planes Christian Eagle in the hobby store. Wow! Nice construction! I am not in the habit of buying ARF planes, but this one has my attention. I plan to buy one, but before I do, I'd like to figure out what engine is right. I saw postings where guys are using Brisson 3.2's and BME 60's. The plans say 50 cc. What do you think is the right engine?