Here are links to Generac boxes and plugs.
http://www.amazon.com/dp/B009TNTZUK/...95ea93df3097_S
http://www.amazon.com/Generac-6331-5...ZSQ0F6XGC3A39E
The box is ~ $67 and the plug is ~ $45.
Again, I will mount this box on the manual transfer switch case and install the plug on a three wire (copper, 6G stranded) flexible cord.
This will eliminate any exposed "hot" ends and will be a lot safer than the "suicide cord" (thanks Jeff, I hadn't heard that term, but it is VERY appropriate).
If anyone has a better/safer/cheaper approach, please let me know. TIA
Steve