Magnum 325 – oil leak on rocker cover?

Hello all – I have a 2002 Magnum 325 4×4 A02CD32AB.
Runs great but after running for about 5 minutes, noticed smoke coming off my exhaust pipe at the cylinder head and looked like an oil leak just above it (see attached-you can see the shiny area). I looked at the parts catalog for a gasket and couldn’t find a name (p/n) for what I’m calling the rocker cover, attached to the top of the head. I talked with FixMyToys and found out the only way I could get a gasket is to purchase that assy. which is $510. DOH ! I’ve also read there is a little hex plug in this leaking area used to check oil pressure at the head, could be loose ? I don’t see it.
The service manual suggests using 3Bond 1215 to create my own gasket. Bad idea ? Looks like my main concern would be the cam gasket area.
Hoping one of you folks have had this happen ? Any input would be greatly appreciated. Lots to learn !
Thanks

Uncle Dave

http://i1044.photobucket.com/albums/…psqtm4sylf.jpg