Mine cost $350 for the TT, $200 for the gears, I think another $150 for the girdle and about $60 for the panahrd relocation bracket. Add S&H, gear oil and shims, etc, I probably spent $800 on parts to completely redo my rear end. Labor, maybe about another $2-300. It was all included with dyno time and the like, so I don't have an exact labor figure, but between $2-300 is about right. So, between $1,000-1,100 give or take $50 or so for parts and labor.
Don't think it was worth it? Catch you at the next light.... But you won't catch me!!!