Ok, everyone's commits pointed me to purchase new engine for my modified kf5 with kf 7 upgrades. What prop is everyone using? Three blade? I am ordering my engine from John,where should I get deal on prop? What spinner, fiberglass or aluminum? Any suggestion on extras to order with my rotax? I bought the extra alternator and installation kit, I have 2 ea garmin g3x and going to use a double battery setup for my panel. I don't want vacccum, so which back up steam gauges would you suggest? Alt,a/s,back up oil/water gauges or use rotax for engine backup? Thanks for your help