1998 a8 transmission problem
 

I've got 100k and the tranny seems to be slipping off the line. Once I get to 20-30 mph its fine. problem happened suddenly one night.
Dealer who has terrible reputation says I need to replace and will cost $6,000. An import car specialist said he thought it could be something less serious based just upon what i've just said. I can't afford the 6k right now. My questions 1)what might happen if I continue to drive? 2)Is there a safety issue? 3) is there any way to put a "band-aid" on it?
Any input would be appreciated!

You'll get better advice on the D2 platform forum