I don't know of one off the top of my head, but I do know that there a few essentials you should not be without if buying a used leaf.
1. 6.6kw charger (All SV, SL, S, w/QC package)
2. Quick Charger (Some SV, all SL, S w/QC package)
3. Hybrid Heater (Most SV/SL depending on year) This is a must for a cold climate or if you have a longer commute.
4. Mobile application/better charge timer (All SV/SL) This is not a must but much more handy than you think. If you are buying an S with QC, get a home charger with WIFI to be able to use some of these features.
I think most of the other stuff is a nice to have but you can do without, such as the LED headlights, alloy wheels, leather, etc...
If you are looking to buy used and want more info, check me site out.
Thanks,
Jonathan