good setup?

i have been planing on building up an erevo for a long time now and i think after reading many many post on this site. i think i have found a good set up but i just wanted to make sure that you guys think its a good set up befor i spend the lots of moneys to do it lol


motor : Feigao 540C 7XL
esc : mamba max esc
battery : 4cell 4000mah (reason for that battery cause i can get it at my work for a good price)


im going to be using a revo 3.3 tranny locked into second gear.

spur is going to be at 36
and the pinion is going to be 28(if it fits)


if there is anything wrong with this setup up please please tell me. i dont want to spend the money and then have it not right and it not run good.

thanks.