I am doing a 2V swap right now into my 81 notch. Look for thread "Project 81 Hack Job Part I, II and III. Do a search in the 5.0L Talk forums and you will find all three of mine with pictures. It is very involved!! If you don't have an air grinder, air tools, air chisel, a welder, a hoist and access to Mustang parts, I would suggest NOT doing it.
BTW.....That Hot Rod magazine article left SOOO much information out that you need it is not even funny. When I read that, they made it seem like anybody could do it in a weekend....nonono.....there are so many tricks and things you wouldn't even think of.