Sport Jett .46 vs OS .46FX?
Don't even think about trying to Run a APC 9x9 on an .46fx.
Not only will you not hit 16,000 rpms, but you'll be lucky to get the thing to needle at all.
Although it doesn't look like much more prop than a 9 1/2" x 7. The 9 1/2" x 7 is a Narrow blade, and does not put nearly the load on an engine as a 9x9 sport prop.
To be honest, I think a Sport 9x7 prop is too big for the .46fx.
Maverick,
You asked about a good Q500 kit, their are several depending on what you want to do with it. If you want a basic kit, you can buy one from Bill Vargas (His Racer II). Another option may be the Lanier Predator ARF. The arf will need a little modifications to handle a Jett .46, but the Arf is only $120. If you wanted to fly it with an O.S. .46 FX you would have no problems hitting 110-120 mph with minor work.