If anyone wants any female skins for free I have some, though I don't know if they'd be your type of skin, but if so just PM me your SL name and I'll drop you a folder full of skins if you want them.
There's a few stores that have industrial like gear I've seen if you want to have a look, "AVZ", "Hat Mechanic", "The Abyss", "Dirty Lynx", "dv8", "Graves", "tonktastic" to name a few. Yeah it is kind of lacking. :(
I look at blogs for freebie, like SL Free style. Xstreet marketplace is okay too. Once in a while you find some really cool freebies. :D