As above and ironically, like your screen name reversed, Go Slow.
I would say, do as stated above. Get it running and try it out. Then you will be able to see where the cart fails to meet your expectatons, i.e. Climbing, hauling, etc.
Unless the cart requires a controller or something big just to run, I would hold off until it is in stock running condition and go from there.
Now, if it's going to need some hard parts (controller, rear gears, etc,)......you should star reading and learning everything you can before you go out and buy something you end up not wanting or worse.......spending money on and then not wanting/needing.
But then again, that just my .02
Either way, good luck and of course.............we want pics asap
K9