Thoughts:
1. SEGR - there has been some recent discussion about kits and there may be some uninstalled ones floating around. Check
http://www.ausjeepoffroad.com/forum/sho ... hp?t=84383 for instructions.
2. plug the MAF back in, after cleaning it, and drive a bit which should shut off the CEL if it's on because the MAF is unplugged.
3. EGR can be removed and cleaned if it's stuck in which case #2 should work if you are selling. See
viewtopic.php?f=5&t=59352&p=659410#p659410 and
viewtopic.php?f=5&t=62495 4. IIRC if you do #2 and if necessary #3 and want to disable the EGR without a GDE tune or CEL then you would have to plug the inlet or outlet side of the EGR piping which can be done with a blocking plate.
Best long term option for a host of reasons is save up for the GDE tune.