the guitar is a nice addition to the purely electronic instrumentation, it adds something special imo. but i do think it would fit much nicer as a less dominating sound in the song, something that compliments the overall atmosphere in a subtler way. more ambient-ish. another idea would be to just build up that melody even more, maybe you wont even need the other instruments to support the song! the guitar melody is strong enough on its own.
when i think of electronic + guitar sounds, im having these in mind (maybe you'll find them inspiring):
gaussian curve - broken clouds
skyramps - days of thunder
emeralds - does it look like im here?