I have found a new A/C compressor for a good price just need to get it fitted.  How many hours labour should I expect to be charged for?  Is this a simple job or a long and complicated one?

I had mine changed this year. It wasn't the quickest job but not an obscene fitment time. The compressor is in a slightly awkward place (front of the engine right at the bottom, offside.) It's a bit of an a*** as I understand. I'll see if I can get the person that does my accounts to dig out the receipt if nobody else responds.