Hydro Cannon, Cold flare boxes sell for about $50, so each pack is around $2.50, or $37.50 for 15. But since they are hodge podged from several boxes/promo packs then I'll value them less around $32 for all 15. I just have my doubles from Zek/Reshi decks and Gar/Hyd decks. I can't really do a pre-order on a box though I also have a Keldeo theme deck only missing the keldeo that I could include for very very cheap (I bought it specifically for keldeo card only, haha).
I'm going to PM you a tentative deal.