The 6T is most definatley still viable and keep in mind Serpent will be out with their S811-T the first of the year, hopefully. This should be a fast fast truck with very little concern for issues since its all been fixed with the buggy. Probably cant go wrong with either Futaba or Airtronics, I really like my 4pk. As far as servos the 7955s are great but I would save myself some money and get the Hobbico cs-170 its the same servo for alot less. I have two I have ran for a while and they were used when I got them!