mice ate insulation off many small wires inside TT. Liquid Electrical Tape, .......????

I have two old Misubishi Vertical TT,'s: LT-5V to make 1 working TT

Took the backs off. One had mice or some small creatures living there, some snuggly stuffing gathered inside, and, they chewed the insulation off many of the small wires, so bare wire is near bare wire in many many places.

If I ever try to get this one to work, I will need to cover the bare parts to avoid shorts.

And experiences, or advice?
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liquid electrical tape seems easy to brush on

https://www.youtube.com/watch?v=y_CfQtgrW9c

another brand of liquid electrical tape, seems thicker

https://www.etrailer.com/Wiring/Spectro/SWC50122.html?feed=npn&gclid=Cj0KCQjwoaz3BRDnARIsAF1RfLclornxa2Ygs9R6WdzAy7F3IOQ7-r1rFtKUt3qjAkNFCe0aRAr1BKEaAlFWEALw_wcB 

I suppose I could spray this kind of stuff on some cardboard, and use an artist's paint brush to coat them, but it could get messy, perhaps I can mix it thinner with something???

https://www.homedepot.com/p/FLEX-SEAL-FAMILY-OF-PRODUCTS-Flex-Seal-Black-14-oz-Aerosol-Liquid-Rubber-Sealant-Coating-FSR20/203144520

sugru can be shaped, but the wires are close together and I have big hands and numb fingers

https://sugru.com/buy/original-formula-black-3-pack?gclid=Cj0KCQjwoaz3BRDnARIsAF1RfLdbsSJc5rYQTF_Vi7csI48c0IhCwY1IxspyzP8X1NO2ZGiTOy_T5tsaAtjcEALw_wcB
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warnings? learned ___? 

thanks for any and all help,

Elliott