Yes Sir, the rhythm guitar is ok; it's frequency range is within the lower mid band, so it won't interfere with vocals or lead guitar, which could still be added (and both usually being located within upper mid band and - due to reverb or distortion - also need band width in treble space).
Oh, that by the way leads me to an interesting question: did we ever have the pleasure to listen to your voice in any song, mate? Why not give it a try in 'Fire and Ice'? If you dared, I'd bestow a little guitar solo upon ;o)

I see... Well, this Frost poem could be easily changed a bit (me could do this if necessary) to pull it out of copyright trouble.
And your lack of voice rec opportunity is a real pity, man. On the other hand... an XLR adapter isn't that expensive. Just think about all these possibilities if you could use own voice clips in addition to your rich music... isn't that attracting?