At just under 6 lbs you can hang her on a SA72, of course the 82 would be even more fun. If you want to run something cheap maybe something like the ASP52 2C, that can turn a 13x4 at about 12,500 RPM. Should hang a plane of about 5.75 lbs but not with an impressive punch out.

Octane - you got a SA82 to turn a 15x6 at 12K? What fuel did you use?