Unfortunately, the good idea is the 'easy' bit.
For anyone who would really like to do this, but a) can't find a partner or b) doesn't relish 8-9 hours of flying, do consider the BWPA's Chairwoman's Challenge. I took part last year with a student PPL from my flying group and we came ... joint third out of 10 (does anyone see a pattern developing?). It's slightly different in that a theme is given, but it's up to the pilot/s to interpret that theme. It really is a good introduction to the D2D.
I'm hoping to do both next year.