I have desolderd a Spartan-6, to check if I could do it. If you can use it, let me know.
I'll send it from Belgium to any country that has no import/export restrictions, in a normal envelope with plain post.
Free shipping too, if you will use it and post a blog on e14. Else you pay the stamp.
It may or may not work. The unsoldering went smooth, but I didn't test the FPGA afterwards.
No rebates
Xilinx Spartan-6 LX9
XC6SLX9
CSG324BTVL341
speed grade 2C
Original location and underside: