There are a few options, listed from most expensive to least. - use Variax gear - use Line 6 gear. - use a Roland GK2 pickup and drive either a Roland guitar synth or VG55 processor. - bring an acoustic guitar to your show I use both the last two options, depending on how I'm traveling and how much gear is practical to haul along. I haven't tried the VG55, but I have GR20 and GR33 guitar synths, and both have decent acoustic guitar tones. I generally mix a small bit of dry electric tone with the synth, which improves dynamics control. Using an impulse response in a convolver is an interesting idea. I've heard it works, but haven't tried it for this purpose. I don't know if it would be practical for live work.