I got that one too my friend in about 1981 at some weird bootleg store in North Vancouver. I paid $25 Canadian dollars and I wore that thing out. Literally. Still have the beige case somewhere in the basement.
I especially wore out the "Ya didn't have to tell me that you, love me so. Ya didn't have to leeeeeeeeeeave me Mama, let me go......." Damn Plant nailed that line 😮
The doctor was played by Larry Badgely............