What BILT4ME said about the AFM "Do NOT remove the two screws and tug on the wiring"
Valve stem seals get hard with age then don't seal well which leads to increased oil consumption.
The "rear oil leak" could be from the upper oil pan or valve cover gasket,
much less likely it's from the...
As above, but how many miles on those plugs?
Consider Denso Iridium (or Iridium TT) plugs, they will last 100,000 miles.
When was the last time the valve cover gasket and spark plug tube seals were replaced?