So many questions

Thanks for everyone for advices! So, if I'm going with Lehner 1940/8 and 4s lipo, 120 A esc is enough? What about with Bk 20XL7 or Feigao XL9? Neu would be nice, but quite hard to get from Europe.... I think I'll go with BK Wanderer or Feigao at first, but if it doesn't work the way I like, I'll get the Lehner. So, whitch one is better, Feigao XL or BK 20XL? Windings? Gearing? I don't need awful top speed, maybe 35-40 mph is enough. I can get the strobe slipper the same store where I purchased G2R, maybe I'll try it...