Ron, I'll be happy to point you to Motocalc or another power prediction software. motocalc's free for 30 days.
First though, we'll need some more info:
a) do you have any other requirements (other than this motor, and 3D, for example, do you have a battery pack you also want to use, etc.)
b) whats your cost limit here?
c) do you have the equipment/patience for LiPo's already, or do you need to get it? remember this for the cost issue.
d) how long do you want to fly on a pack?
besides all that, max spec RPM is 20k, which is miraculously the same as 11.1V -> 3s lipo. you'll want it geared down around, say, 7500 rpm, which would be like 2.66:1 gearing, but lets dig that back to 2:1 to account for voltage sagging.
so motocalc is showing me that an APC 12x6E will kick out about 48 oz thrust at 7500 rpm and 29 amps
a 12x4 (graupner, but i used the same prop constant) would be at 45oz thrust and 24 amps
both of these are going to need a lipo pack that can kick out 30+ amps, something like a TP2100 10C 3s2p or a tanic 3s2p 2500. both'll run around 9 ounces and $160 or so.
on the other hand, 3s voltage or even 300W in *could* be pushing the limits of this motor, i cant tell.
how much does a taco weigh, empty? it'd be nice to know how much room is left for power gear.