newbie needing advice

[big air]

just happened to stumble across this site at the right time
im about to start doing off road and i need advice on what generator or battery to use to power my charger/fans etc.
im also looking for advice on a new buggy 4wd, which one i will be using it mainly outdoors, there seem to be more buggy's coming out more than ever, i did like the look of the 501x but i was told parts are hard to get hold of, then theres the x11, xx4, bj4, aero 1, im looking to get something in the next 2 weeks really, i have got a zx5 but haven't run it yet, in fact ive never ran a buggy since i was 15 "tamiya astute".
i was going to run the lazer but i heard that they dont like the ruff stuff outdoors.

anyway thanks in advance for any advice