Your new Jeep looks beautiful!
best place to start reading IMO is Here
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=54207Since you're familiar with all the Jeep-y stuff, we'll skip that.
In the short time I've been owner of a CRD and following all related issues closely, it seems that the number 1 CRD issue is catastrophic engine failure from EGR emissions system, #2 would be fuel supply problems, followed by electrical.
1
If the EGR / Flow Control Valve system is still present and operating, fix that right away. The crankcase ventilation system introduces atomized motor oil vapor into the intake system right in front of the turbo. It then goes through the Charge Air Cooler, and through a valve where it's mixed with exhaust gases, and becomes essentially fine tarmac going right back through the engine again. The ultimate solutions to both problems are available. Sasquatch Parts sells the Weeks 1-2 system that removes the egr system completely. I highly recommend it. If money is a limiting factor in this, at least make a block-off plate that seals the exhaust system from the intake.
The solution for the vaporized oil being introduced to the turbo is a Provent or similar catch can system, that coalesces and separates the oil from the air coming out of the crankcase, but still allows the vacuum from the pre-turbo intake to pull the crankcase gasses out through the "puck" valve, and bring cleaned air back to the pre-turbo port, and the separated oil to be drained away.
2
If you rig is currently running and driving as good as it looks, If I were in your position knowing what I know now, I would start with an In-Tank lift pump mod. This will stop all the little ongoing air-in-fuel issues. The Jeep already has a fused circuit and relay in place, and wiring for the pump to the connector under the rear left seat. There are now plug and play looms at Sasquatch Parts, if you're uncomfortable rewiring plugs, etc. The In-tank modules are from any dodge full size with a Cummins diesel, and can obtained from any wrecking yard that has the like if you're a price shopper. Sasquatch Parts and IDparts both have the modules new.
For further insurance I also recommend a spin - on fuel filter that is much finer than stock. Even though Jeep says the mopar filter they use can stop 3 micron particles, what they don't tell you is that when in use, particularly if you're off road, it does well to stop even 20 micron particles.
3
AS far as electrical, Start at the battery and the power distribution center behind the left headlight. Make sure all fuses, relays and connectors are clean and tight. Then get a list of ground point locations, and go through them all cleaning and tightening, and some kind of corrosion prohibitory stuff. There are threads on known pinch and problem points to check as well, such as behind the fuel head bracket, and between the intake manifold and the alternator / bracket etc.
There are many more good mods, such as ARP studs replacing head bolts, but I think these are the high priority ones more likely to be an "eminent threat" to your CRD's health, and preventive measures in this case are much easier on the pocket than repairs to something that's failed.