hey guys, i just bought a magnus skywarp two pack on clearance and im gonna kit bash them both. im gonna do skywarp into thundercracker and magnus into "real" ultra magnus. this will be my first extensive repaint and i need to know where i can get a good set of punches to remove the pins. also what is the best sculpting putty to make new head sculpts and where can i get those? one more thing, how important is it to prime the figures? ive used krylon fusion before and there seems to be no rubbing off during transformation but theres a lot of rubbing on the classic seeker mold. So what would be the best way to do this if necessary?