Moments later 

What stops random chips from being swaped out?
Could it be because they would not pin out right?
If that's the case, can't you just mount onto a breadbaord and thenbrun wires/pins to the right/needed layout to make them work?

I know voltage might be an issue but that can get worked out.... so aside from volts any problems with that?

Sidehack: what type of hot air station do u use?