Expansion tank removal

I just installed new radiator in my 78 vette. I was going to replace the expansion tank but it looks like its going be a bear to get out. Anybody have any experience getting this out?

After getting a few lines out of the way You remove the fill tube opening and it twists off, then you will be able to remove the entire tank after taking screws out that hold it from the tire opening under the tank.  Good luck