The last two XFs I bought were 2200 and 800 miles from me, involved a one-way plane ticket each time, with a drive home in the new car. Best trips ever!
Finding the right car is almost never a "local" thing with these cars. My Ford Ranger I just got was 3 miles from home - but an XF is a different story.

As to item 3, let it go. Our cars are aging and the most common issue with the alarm is it going off when it shouldn't. (Unless you mean there is no beep when you lock it, but that is normal.)

Item 7 - the TPMS sensors in the wheels are ten years old, new batteries or new modules may be needed. Of course, if he didn't put the TPMS modules in, then there is your issue. If the tire modules don't transmit a status periodically, the light comes on, same as with a low tire. Base and SE models don't have the TPMS system - so it's no really big deal, I guess.