Well in the instance of travel it is good to see what your doctor has to say about basal's and stuff. That can be interesting. If nothing else plan on testing more often.
I never used the pump lending program, you can call Animas about it and see what they suggest. There are many areas where even if the don't allow for pump lending they can get a pump to you within a day or so.
If nothing else always have backup supplies including both long and short acting insulin.
I have never x-rayed my pump. Sometimes it will set off the metal detector, sometimes it won't One thing to note, make sure you remove the metal clip for the pump. My first travel trip I forgot it and set off the detector.