Thanks for the info Jester. Surprised about the regularity of suspicious posts but I underestimate the stupidity of bad people.
Let me note furthermore that this is related to a (legal) startup venture and not anything illegal or wicked.

I've pretty much already done what I am describing with an FMS Beaver, Ardupilot, Scorpion 4035-450, 4x 4s 10Ah batteries (two parallel sets of two in series), and some other customization. I just can't seem to get enough flight time...

That's why I need something more energy dense than lithium like gasoline

A problem I'm finding with all the gas planes is none of them are RTF.....anywhere I can buy an RTF Senior Telemaster or any RTF 30cc rated plane? I see ARF but no RTF....