67 A/C heater box rebuild and install help

Hey Red, I can barely see the tube thru the fins on the evap. toplscuda has his totally apart and got the capillary tube out, so I sent him a pm. Im gonna leave it for now and focus on other aspects of this. I talked to an ac shop today and they said they cant test the evap core on its own, they are only able to test the whole sytem when its together. For now all I want to do is get the under dash stuff done so the heater core can go back in. I figured while its getting new seals and gaskets I would have evap checked. I DO NOT WANT TO DO THIS TWICE!!

Thanks
Steve