Why not call the band "Gallowglass" (They were mercenary,foreign influenced, not completely Irish, like your line-up's content?. That 5-string can be used only as chording accompaniment, is that correct? Let us know how you fit it in as it is very difficult to play irish trad on the 5-string, I think. Particularly jigs and hornpipes etc, reels are ok though. regards.