Nice selection of parts you've used to do your conversion, I bought a new 8T RR and converted it with the Tekno kit, none of the other spangly bits though but just by way of comparison here's how I mounted my esc
Losi 8T RR - Novarossi Plus 21-5BT/ Jammin JP3 - Teknorc 8T - Neu 1515-1Y - MGM 16025-3 Z Series ESC.