Haha...I notice a pattern that I've followed before, SAS Eagle and Quick Fire customs?
If it's any help, Blast-Off's head is too goofy looking and his neck can be too long for some torsos. Comic Pack Flash's neck is too long for most torsos and the Astronaut head kind of works but its massive. Might next port of call is Depth Charge.
I used BO's head with Beach Head's and DEF Mutt Torso's but I just couldn't get away with the look on his face. I'll check my spares box at the weekend for you.