Sig Citabria
I built the Sig Citrabria this past winter, this is a fantastic kit to build very fun for a stick kit. I powered mine with an Enya 80 4stroke which should work great as in Idaho where I live we are above 5200 ft. As soon as the wind quits blowing mach 10 we'll give her a test flight. I finished mine with Tower Coat in Orange and white. I used the wheels recomended in the kit and the same with the tail wheel. As I always put a bigger engine in my kits because of our altitude I install the biggest fuel tank I can stuff in. I have built almost every Sig kit available at this time and have enjoyed building them all. I am sure you will enjoy building and flying yours also. As this kit weighs 71/2 # per the box, I would go for a bigger engine than the 40 or even the 46.
Gimpy55