The original power pack E came with 2204 2300kV motors and 20A ESC's. I'd recommend 2205 or 2206 motors around 2000-2200kV and 30A ESC's, that will allow you to run 3s or 4s batteries. For a FC I would go with an JBF4, CL Racing F4 or Omnibus F4, as the F3's are on the chopping block for Betaflight support, the F1's (like Naze32) were dropped quite awhile ago.