Motorola 77XM AM/FM Radio found today

[Captainclock]

Hello everyone today I found at one of my favorite antique store haunts was a 1950s vintage Motorola AM/FM Radio Model 77XM that's going to need a lot of work, because the original cord is pretty much gone except for a couple of inches of it sticking out of the cabinet, and the cord was a 3 conductor plug where the middle (ground) conductor operated as a built-in antenna of sorts besides the external antenna connections for both AM and FM. There was someone else that had this same exact radio on here that they overhauled and I was wondering if whoever that was might be able to chime in and give me some tips of what I might do with getting mine going, especially as far as getting a proper replacement cord goes, which I was thinking of trying to find a 3 prong power cord from like an old light fixture or computer monitor or something and cutting the plug end off and wiring that into the radio like the original was and then wiring a plug end onto it and going from there.

Any tips or advice would be appreciated.

-Levi

Pictures posted below.