Hello TNC.
There is not a list that I am aware of, perhaps one of their reps who also frequent the forum can point you to something.
That weight, umm yah that's about right for what the bike weighs. When they said they were able to take weight off it, it wasn't anything major, maybe 10kg or so here and there. FWIW once you get the bike going, probably 8 to 10 km/h you really don't feel that weight too much, it handles very nicely. Slower though and yes, you have to be careful with it.
I would not worry too much about a 21 energica, I believe there is still plenty of warranty on the battery, I think they took the warranty out to 5 years, however, from what we have seen, there have been very little problems with their batteries, so I am sure it'll last a bit longer than the 5 years.
Aaron