I think the value would be twofold; the limited release (50) redemption entitling the holder to all 5x Force 5's, bear in mind only 50 exist! And the fact all 5 hold the same number. I would not see the point in breaking the set up so you cannot limit the value based on this, in its current state this set is very collectable. Collectors love having all the same number and therefore you can get a premium price for this alone! Bugger all complete sets like these would exist hence why you rarely see for sale if at all.
The redemption card alone is the rarest of all cards released pre 2004 isn't it? I would think sale price of the set in NM/M condition would not be too far shy off $1K if it were to go to market at a $1 no reserve auction. The market would push the price to this limit and maybe beyond no question.