Please don't type in all caps.. this is considered YELLING at us !!
I'd spend the money on the Stainless.. Coal ash, fly ash etc is pretty corrosive.. plain steel will corrode enough in one year that it would have holes in it.. Stainless should last several years.. it is more money, but usually it is money well spent,, you actually get more years of use per dollar with the Stainless compared to regular steel.
Greg L.