Done correctly, an electric power system could have that plane in the same ballpark weightwise (give or take a half pound or so, hard to guess). Depending on the choice of motor and battery, power could well be much better, at least initially.

Depending on the battery you chose, you may or may not be lighter or higher performance. Smaller batteries are lighter, but flight time would be restricted.

From what I've seen, electric planes still struggle to achieve modern glow performance if flight times aren't restricted. The average glow power system is good for 15 minutes of good fun flying, whereas most electrics I've seen need careful throttle management to exceed 10 minutes. Granted, I've only seen so many electrics, and very few larger than .25 size.

So far as I'm concerned though, IC makes a plane, electric makes an APPLIANCE! Kevlar and asbestos suites donned....

J