I agree with PG...
Hey, my guit tracks sound like shit all by themselves, but with the rest of the music to swirl around it, feeding it, feeding off of it, making love to it... You will definitely hear much of what you want to hear after you add the drums and bass at least.
Your tone sounds good and crunchie... so a bass track would slide into the low freqs nicely beside it probably.
As PG said, you can get a better result doubling and then panning (but don't just dupe the track - you gotta play it again or you won't hear any stereo effect... and if you just dupe and delay one of the tracks, you'll get flang... totally different....)
So when both your guit tracks are panned, slide the bass track down the center channel like a hot dog.
Good luck.