They will build a lot of these as they are the most profitable F150.
The GT500 is the most profitable mustang, and they don't build a lot of them.
Just for fun, I emailed Investor Relations asking them to comment on the anticipated profitability of the RaptorR given the money spent on news and press release vs what they spend on the GT500 launches and was referred to Ford Performance as technically this is a Ford Performance truck.
Ford Performance's response when I asked how the production numbers of the RaptorR would compare to the GT500's ~5,000/year was given they use the same limited hand build engine:
"By its nature I would think that it would be more limited in run. (referring to the Raptor R)
I would talk to your salesperson/Ford Dealer of choice for more details on ordering for the Raptor R."
Who knows, but I'm erring on the side that this the GT500 of trucks, and we'll maybe see 5,000/year.