ORIGINAL: woodie
For an initial plane, I wouldn't worry about being over the 5K limit a little. No one measures or weighs the planes at local contests anyway. You would give up a little performance at the higher weight but glo planes take off at well over the 5K limit with a full tank on board anyway.
Glo or electric, they will both work well. Just go with proven setups and you will really enjoy the plane.
Woodie
Team Acme LG
Woodie aka the Coyote - my partner in crime & fellow Team ACME member - is correct. Don't worry about the 5 k limit for now. As a matter of fact, I have a Fliton Element 170 Bipe that's probably pushing 6.5 k take off weight, but I can still go through the F sequence with a YS 170 on 20% nitro, only using 1/2 to 3/4 throttle on long vertical up lines.
Just concentrate on setting up the plane correctly. As for glow or electric, talk to a few more pilots before making up your mind, both have advantages & disadvantages. But the most important thing is, ENJOY!
Adrian aka the Road Runner
Team ACME LLC