Hey there,
I have three flying wings now & my first was a converted LE.It is still flight ready.I kept the standard servos installed & removed the 'AA' slope flight-pack & filled the hole with a piece of scrap foam.I fitted a standard Zagi or generic tray/canopy with the receiver buried beneath.It flies great with a speed 400 or 480 motor(20amp controller)& I use inexpensive 8 cell 600mah Nicad packs...or whatever will fit the tray you buy or build(see trickrc.com for these parts)ie/ 'AA's nicads or nimh etc.Add an inexpensive Hitec CG340 charger(for feild charging)& you are in the E-flying business!I still had to use a little lead in the nose for balance(as per stock CG...or maybe a little aft
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DO IT...You will not regret it.It works like a charm!
I LOVE the slope but the wind is not as reliable as your batteries are!
Regards.
M.Q.