re: F150 Tailgate latch issue

Just came across this thread. Other than a dealership(that may or may not have whatever parts you need in stock), it'd be hard for you to find somewhere that can do it in a day. I work in the collision industry and deal with stuff like this all the time. Most places would have to take a look at it, determine exactly what part needs to be changed(could be handle, could be rods, could be clips that hold rods to handle, could be one or both latches), then order the parts. Once the parts are at a shop, it would be a pretty quick fix.