Labor is highly dependent on your location. If you're someplace you have lots of vinyl shops, labor will be decent. But if only one shop in town will do it, it's going to cost. Here in Atlanta, it ranges between $1500 and $3000 in labor for a car the size of the FX. The $1500 was a quote from a shop that has wrapped my other car so it may be slightly discounted. But if a shop came in much below $2K including materials, I'd stay away unless they were trying to get some advertising out of it. It's close to 50 man hours of labor.
You can do it yourself and the FX is probably one of the easier cars to work on since there aren't too many complex curves. But even though vinyl is relatively cheap, it still works out to ~$2 per square foot. So every time you mess up a panel, it will cost a decent amount. Mess up a door and you lost $30-40 in vinyl. Mess up your roof or hood and you're out $60-70 in material. It's not like wrapping your interior pieces where if you mess up there's no real loss since the amount of material is so small. I think the bumpers are going to be the trickiest part and if you mess one up, it's a lot of material.
I'd maybe try wrapping your roof first to get a feel for it. If you feel confident after that, give it a shot.