I run mine without the inner fenders. I live in Ga. so I don't have to worry much about salt but I do get plenty of dust, dirt, mud and water under the hood. No biggie, just wash it off every once in a while.
I made new battery tray mounts using part of the original mounts. I ran a brace down to the radiator support/front crossmember. I could get pics but it really isn't too hard to figure out once you start looking at things. I will tell you that moving all the stuff that was connected to the inner fender is a whole lot more time consuming than whittling up some battery tray brackets.
BTW, my K5 is a diesel so you might have to make sure that your spark plug wires, distibutor and coil are in good shape as was as water repellency goes. Just pressure wash everything in the egine bay good,,, then if it cranks and starts AND runs well,,, then you ain't got no worries! /forums/images/graemlins/cool.gif