For anyone interested or curious I figured out all the issues I previously laid out in this thread and have the jeep running great...for now.
Here are the steps I took to address the Codes and some other maintenance I pulled while wrenchin' on it:
Code 11--I found that the connector going to the ignition coil was loose and had been loosing contact. A little electrical tape cured that ailment and the code 11 was no more.
Code 24-- Sure enough, after I replaced the TPS and reset the computer, code 24 no longer showed itself.
Code 27-- This was a head scratcher, but thanks to a lot of good information on the forum I was able to diagnose the issue without much extra time and expense. The first thing I did was check the psi at the fuel rail to make sure it wasn't the fuel pressure regulator, fuel pump, or trouble with the lines. All tests for the fuel pressure came back to spec. Next I began chasing wires in the harness going to the injectors. Sure enough I found a broken wire going to one of the connectors. A ride to the parts store, a $12.99 replacement fuel injector connector, some splicing, a quick prayer and the turn of the key later revealed the problem solved.
Other items I replaced while under the hood: fan clutch, water pump, and power steering pump mount. Both the fan clutch and water pump I knew were just limping along and the power steering pump mount was a disaster-in-waiting. That mount had so many cracks in it I was almost scared to prop tools on it.
til the next episode...