Dave, right now, it's a toss-up between the Hyperion 4045-10 and a Neu "ork" 19XX series. Chronos 333 has a post on the RC Groups newsgroup (Gas-Electric Conversion) where he has also converted an Aurora 60 using the Hyperion. His #s are:

Hyp 4045-10
TMM 5024 ESC
8s Lipo (3700mAh)
APC 14 X 12E (55Amps)
APC 14 X 14 (57A)

http://www.rcgroups.com/forums/showthread.php?t=471610

He likened the performance to fitting a YS 120 to the front minus the weight penalty...lots of power! He seems pleased although the big issue with the setup is poor ground clearance on grass. Those older trike equiped pattern ships were meant for 11 or 12" props.

I'm very pleased with my fuselage thus far. She's perfectly straight with everything nice and square. Ref weight, I'm at 360 grams (.75 lb) as seen in the attached photo. I was hoping for lighter but at least it's very stiff in the wing attachment area. I'll try to shave grams when I carve and hollow the top and bottom blocks.

Jeff L