Got mine also for $79.00 on sale! Couldn't resist as well. I have been flying my Kyosho Pitts .40 with a YS .63F and will install this powerhouse on the Stinger. Oughta rock and roll. The biplane is fun but I am tired of it for a while. Anyway, looks to be a fine, well build arf. I have seen Stingers of all sizes fly for years and although they are not that pleasant to look at , all have flown well. Snow and single digit temps are keeping me inside so it is a great time to throw this little thing together.