RE: Extra 330s or Edge 540???
If you have your heart set on glow take a look at the Ultra R/C Giles 202. At 79" and 10.5 lbs. with an O.S. 1.60. I'm flying a 24% C.A. extra 300l with an O.S. 1.60 with Perry pump and a little over 15 minuets on 16 oz. fuel. Other pilots say .8 oz. min.
Any way check out the video at Ultra R/C.
Matt