10 month paint job

How close is it? A car can look far from paint to the average person. Body filer showing all over the place, bare metal here and there......

Then , "bang", it is in primer and being blocked.

It takes an amazing amount of time and effort to to restore an old car body and you mentioned 1/4 replacement. I assume rust also.

If steady, but slow progress is being made I would not pull the car out. If you put the car into another shop, at this point, it could start the year and the process all over.

The new shop may refuse to offer any kind of warranty if they have to work over someone else's body work.

How much are you paying for all this?