I'd have to agree with kjam22 about the timing issues. For the final version I'd re-record it using a mic'd acoustic.
Unless you've got a really great drummer and your parts are played perfectly to the click adding the drums after is often not a viable option. I always find it best to track the drums first to a click, but also with guide guitar, vocals and bass (ideally being played at the same time) to give the drummer the best feel for the song. Once the drums are down re-record all the other instruments to the drum track not the click. That way if the drums stray slightly anywhere the instruments will follow (hopefully). As you were (hopefully) playing along when the drums were tracked you'll have a good feeling for them, especially if you record your parts immediately after tracking the drums.
It's a good sounding song and I'd be interested to hear it when it's finished.
Pete.