Hi Ed,
If you want to make your LR-1 electric powered, I'd suggest you take a look at the following threads over at RCG. Lots of info as to what people have already tried.
Here's a link to one of the discussions:
http://www.rcgroups.com/forums/showthread.php?t=380211
and a link to the other discussion:
http://www.rcgroups.com/forums/showthread.php?t=374453
You didn't say what Kokam batt you are using in series. How many cells for each pack? Are you planning on 3 cell voltage or 6 cell voltage? ie: 6S1P or 3S2P ?
Anyways, I pushed my Aveox too hard and I had to send it back for repair. I think the high voltage and lower amps method is better for this application. Running 100 amps for 5 minutes is pretty hard on things [&:] A couple of guys are having success with a Mega 22/30/3 and 6S2P with 2100 mah cells, and apc 7x7 prop. I think a Phoenix 80 will be fine at 6S voltage and 45 -50 amps.
Joe Ford at Castle Creations is putting together a LR-1 and he is going to use a 12S setup with a custom wound motor. Probably with the new Phoenix HV 45 ESC
I had 7 flights on my glow powered version today and it is a very good flying plane. My glow powered version is about 50 oz w/o fuel and can land very slow.
My electric version was flying at 65 oz and you have to be careful when the wing loading gets high.