If you can stand to read more, I got to page 44 and about from page 20 to where I am alot of guys have already flown theirs and tried lots of different engines(from .46-1.00). I think you will be able to find what you want to know there. Also the covering is not very good and tries to come off over time and some where in that section someone mentioned using clear top flight lustercote to help hold it on.
I just got a check for an engine that I sold so I will be sending the order form today and should have it ready to go In about a week.
The pics posted by wyo69cowboy are my reactor before I got it.(wyo69cowboy gave it to me) When I fly it I wont be able to give you a report on how it 3ds, because I have never done any 3d except on the sim either but I will try to hover an tell you if I can with it. BTW, I have a set of the upgrade lg on its way.
I don't know if the .52 will 3d it but I'm guessing it will. wyo69cowboy had about a .50 with a tuned pipe on his for awhile but I don't remember if he could 3d it. His elevation is about 5,000ft and I think his engine was enough so yours prob, will.