Hi Chuck,
I think you will be happier with a little more engine than the Brodak .25 unless you build it very light. Personally I do not think the Brodak .25 is quite as strong as a .25FP or .25LA. The plans show the Johnson Stunt Supreme engine and I think a little more power is always a good thing. I hope you are doing well, I believe we met at the KOI several years ago. (??)
Bill