10k minimum. At least the fender is easier to replace than a bedside. Doubt they put a skin on the door, less labor for a complete door is my guess. Vehicles are replaceable, you aren't. Glad you are okay.
I would be nervous just having tape holding it on, i had a siren bracket break one day and I ran over it, luckily only a few scrapes on the undercarriage. I felt it but didn't see any debris in front of me and my buddy following me told me what it was, he straddled it also.
Dropping off mine in the morning to get the transmission and some other things addressed before my esp expires.
On another note I had a tire problem on my wife's Lincoln, was going to put tires on it this fall anyway. My dealership meets or beats all local tire prices. Just so happened that...
I'm not sure on sand mode but when I engage the trail control system in my truck I can go from roadway to damp bumpy grass to rutted up steep logging trails with loose stone easier than a kitten climbing a set of curtains when it's running from a dog.