i own a 808 2010 and this week will come my 808e. i am thinking about try a 3s set up with 3s hardcase lipos ( 3800 45C 11.1v 360 gramm) and a NEU 1412 2750kv) and a mmpro controller
this would give a good weight i think
i drive always 4s with the tekin motor in my buggy. it runs great, but my old electric buggy ( asso rc8be) ist toooooo heavy for a buggy.