The forum is cool.
Typically a rear main will seep oil onto the flex plate as well. The rear engine covers like to leak on these...buttttt like you said, it's on the opposite end of the motor.
One suggestion I have is to look up the block when checking out the leak. The valve cover gaskets on these motors are pretty common leak points with mileage and or a gasket set from ZZP, who by chance makes the SSM90 kit that it appears your motor is wearing.
ZZP's kit doesn't contain valve cover grommets. The valve cover bolts have sleeves on them which keeps you from over torquing etc.
If the rubber bolt grommets aren't changed with a gasket, there may not be adequate pressure on the gasket. Since that is the job of the grommet. As well..ZZP's valve cover gaskets don't fit well in our stock valve covers. They are a little short and pull/twist in the corners of our valve covers (at least on the SC'd motor covers)