Etchung Solutions for Damascus

Good day folks!  I'm new to this news group and trying to get some 
information.  I have been working a coal fired, hand cranked forge for 
about 6 years.  Recently I have bowed to local pressure to make Damascus 
Steel, and to shape into knifes.  My problem is that I'm having a 
difficult time finding an etching solution ie. ferric chloride, or 
nitric acid.  All of the local Radio Shack's have discontinued ferric 
chloride and I can't find a supply of nitric acid.  Can anyone suggest a 
supplier?  I live in rural southern Illinois.

										
			Thanks,  Rich