Blimey, this was like pulling teeth. First 10 mins deleted as my new Mic was blasting the Audio at crazy level without that being visible to me in software, and then we moved to direct recording and Richards end was clipping like mad, as his mic volume in Audacity was creeping up to max all the time.  This is the best I could salvage, so be prepared to play with the volume knob on this one and some comments may sound odd if they reference the missing 10 mins.