A/C Compressor Fail

[HBSRA10]

2003 X5 3.0 with 50K miles. About two years ago, I was told that my A/C compressor was leaking at the front seal. The recommendation was to recharge and see how long it would last. This summer the A/C completely stopped working. Another mechanic checked and said that the A/C compressor does not engage (He did that bypass/battery test to see if the electricity was going to the A/C compressor. It wasn't).

My question is how much does it cost to change this? Where would I get the cheapest part (two years ago the est. was 770+ parts plus 250-300 labor)? Any ideas?


Thank you,