need help w/ replacing EGR valve

I have a 95 cougar 4.6 L V8 and i am having a major problem replacing the EGR valve. It was a pain to get to the dang thing and only got the outside bolt off. I can;t get to the exhaust bolt or get the bolt on the inside. It took me 7 hours to get one bolt off. I need help please

http://www.egrvalves.net/ Look at the picture of the valve. I would use a six point socket to remove both nuts. Then use a flare nut wrench for the other fitting. Use an open first to check for proper size before buying one.
http://www.autopart.com/tools/toolsmain/tool/T_A867.htm this is a picture of one.