Help with a value on a 1971 E case.

[MIAdragon]

Have a chance to pickup case number 6211357 and possibly more the parts to complete it. I’m unsure on what’s the value of a. The case or b. “most” parts to complete. Thanks In advance.

[Carbster09]

I just sold a good 7R for ~$500! I paid alot more than that for it!