RE: Himax 5300 Kv Motor
I have been very pleased with my direct drive HiMax 2812/0650 on my Eflite Ultimate. With an APC 11x4.7 SF prop, CC 10 ESC and TP 3S 1320mah li-po it will fly for 20+ on a charge and hover for over 15 of that. If I had to do it again I'd get the 2812/0850 and a CC 25 ESC though for just a bit more power. The direct drive motors are very quiet, cheaper and have no gears to strip.
An 11x7 prop gave me a bit more power but also caused the ESC to cut out occassionally due to high current draw. In the end I decided to stick with the 11x4.7 for an additional 5 minutes of run time.