Worst comes to worse, you can always shim the engine mount. I have seen the aeroworks guys using paper thin washers getting the engine thrust just right out here in CO. BTW a lot of the pictures on their website is where i fly.

Back to the right thrust. Every kit I have build has been a greatplanes/towerhobbies/top flite product and they all have right thrust. I dont know if its just the way they design their airplanes, or if the airplanes really need it. This being a lanier, maybe they have built it into the fin or something. I am not sure as I don't have the kit, but i really would like to see how this build comes out. Have a good one.