So, one of my favorite PCs in my DW game at the moment is a mortal human Storm Trooper build with a very rich back story. He has solid stats for a human, is a rank 9 DH Ascended character and so far hasn't died.
I like being very malleable with my players and figuring out how to incorporate these two game systems to the most dynamic and fun expectations has been really rewarding. At the moment, I am considering offering him a gene-therapy treatment (the Inquisitor will actually do this) that would bump his toughness bonus to x1.5 (not as strong as the Astartes unnatural x2 trait, but something within the realm of possibility).
My question is, how much XP would you all charge this PC for the procedure? I was thinking anywhere from a boat load to a shlt ton.
What do you all think?