Just got a Great Planes Cessna 182 40 ARF..Suggested engines on the box are OS .60FP, OS .65LA, OS FS 52 Surpass and OS FS 70 Surpass. I was thinking of using the OS .61FX non-ringed engine until I found out that the OS .75AX is basicly the same size with same mounting pattern as the .61. Is the .75 too much engine ? If not, what would be the smallest prop I could use...Perhaps you have a better engine suggestion. Thanks Bill M.