I usually don't deal in old cards, so I spent some quality time with TNT and ebay completed listings. Given that, I value them at around:
Magmar ex (3-4)
Rayquaza ex (7-10)
Crystal Kingdra (20)
Floatzel GL Lv.X (6-8)
Porygon Z Lv.X (6-8)
Magnezone Prime (2)
3 Alph Lithographs --- actually I have 1, 3, 4 and I think you need 1,2,3 but I value them at 2 each
So that's... 48-58, basically.
Bianca I see as 20-24.
Rayquaza EX FA I see as 17-20.
Cresselia EX FA is around 10-12.
So those three together would be 47-56 by my count, which I'm happy to call even if you'd do that trade?
The thing is I see Bianca as $26-28 and Rayquaza as $21-23
I could do those 2 for the lot?