Grayson, maybe before compressing, I think I'd try to take a copy, separate the channels, pull down the left chanel (as to not disturb what's going on over there).....then start working on the right channel, and pull down all the freqs above and below the lead guitar (isolate just the guitar). Put the channels back together, "save as", and then make a project of your original with this new .wav........and then try stirring in the new .wav to suit your liking.