Looks like you are doing a great job Innojazz!
Do yourself a favor before installing the injectors. Besides new o-rings, pick up some heat sleeving to cover the injectors. This should eliminate the "heat soak" issues many XJ owners experience (the engine re-starts and runs like crap after a short trip, sometimes get the check engine light to come on for # 3 cylinder misfire). This cured the problem for my XJ and WJ. There is enough in the package below to take care of two vehicles. Just cut to approximate length of injector and cut a notch out to accommodate the electrical connection. If it takes you more than 10 minutes to tackle this, you're goofing off!
http://shop.advanceautoparts.com/p/...aluminized-sleeving-3-4-x-3-010403/16120024-P
Also, there was a debris shield recall. I picked one up at the local dealership for around $6.00. Don't recall the part number, but here is the recall notice.
http://www.chrysler.com/universal/webselfservice/pdf/B06.pdf