dm , in your case , as they are add on's do like oilslick said or i am sure you can still find one at another dealer. i did a search on a few areas ( not sure where you are located ?) but there are Spitfires still available and some still in transit to dealers , so go to the Ram website and do a search with a 250 mile radius and and i am sure you will see a few .
Yes they are a limited edition and seem to go fast ( in some cases) getting it much below MSRP these days might be hard to achieve but might not be impossible , just dont expect to get a deal similar to what you might get on a regular Big Horn.
I paid just a little under MSRP ( not much
)
good luck with whatever you decide as the BTS edition is really a great truck