We've been playing some of the songs in your set list for a number of years, they are classics.
Our first ever gig was a similar set and we just thought people would listen so practiced to the best of our ability (yes, those stops in a 'simple song' are important) and were gob smacked when the audience got up and danced right from the first few notes 'til the end of the evening.
Take the offer if it's made and enjoy.