Your TOB is shot, no doubt at all. But I have an idea.
My guess is the TOB is barely touching the pressure plate fingers, and the spinning of the pressure plate is causing the squeaking of the TOB. I have an idea which might eliviate the squeaking problem. This also, in turn, should take the wear off of the TOB bearings, and prolong it's existance. Soon, it will explode, and you will absolutely need to replace the TOB.
Is it possible to get some bearing grease on the TOB through the clutch dust cover? I can't remember.
If you remove the dust cover & disconnect the clutch cable, you might be able to get some bearing grease on the TOB where it makes contact with the pressure plate fingers. OR, you could put bearing grease on the pressure plate fingers, where it makes contact w/ the TOB (very tips of the fingers, ya know?).
Either way, as long as the contact point of the TOB/Clutch Fingers is lubed up, you might save yourself a completely blown TOB.
You are still going to need to replace the entire clutch assembly. No point in removing the transmission & not doing everything. This might give you some time to save up money and get a good clutch, not a stock replacement. Remember, resurface the flywheel, and replace the pilot bearing & rear main seal also.
Scott