[Butcher]

I suggest you purchase new/rebuilt calipers. It seems that you are over your head and your wife is much more important than the pride on fixing it yourself.

Those appear to be rear calipers and there is a special procedure to 'push' those pistons back.

 

[Butcher]

If the caliper is seized, then it is no good. The caliper piston must be rotated as well as pushed.

You are talking about brakes and done wrong can kill people. There is so much information on the internet if you cannot find it, just buy another caliper. I cannot stress enough that you seem to be over your head and it's nothing you should be playing around with.

Of course, this is my opinion and considering I am a butcher, you'll probably discount it.