Glad your addressing that kinked oil line.
That squeak is metal on metal and in the area of your video.
Based on the area where it's at I'll swag that the throwout bearing is wornout and causing the squeak but I can't recall one making a as high a pitch noise like that. It almost sounds like a tin is rubbing either on the flywheel, pressure plate or crankshaft end where the flywheel bolts.
It sounds external if thats any consolation. (it would be to me
)
Look for any shiny/bright spots on the flywheel and pressure plate. You may want to hand turn it while down below looking.
Put some good lighting on it too.
Good luck
Dave
