I come up with a total of under $2K. As follows -
DWM w/10-12 in bbl = $850
2 extra bbls = $400
stock + 'couple of' holsters = $375
3 books = $250
case = $100
total = $1975
Having a long barrel makes it a shooter. Nothing I read here says 'matched barrels'. For my pricing, I chose to err on the high side.
Just my own little $.02.