Thanks for all that feedback Chris.. very helpful as always!

It's nothing fancy. I'm actually performing at a school concert (singing and playing) with my 8yr old son who's turning into a great little drummer! We've adapted "Get Back" for one guitar and to show off the drum kit and his skills. It's more about him than me. Very proud of him of course. So there's no bass either, just the two of us, but I still want to achieve a good Beatles like sound....hence the question I asked.

So I set the gretsch to bridge, set tone to roll off the high frequ. On the amp, I've added just a little bass and reverb to the top boost. Seems to give it a bit of presence. Also turned up the tone cut.

I thought the solo felt a bit thin with just the one guitar though, so thought I could use a bit of extra gain from the overdrive pedal to add a little to just the solo and leave it off for the verse/chorus. It sounds ok to me, but is that an ok thing to do?