Haven't done VW's in a few years so I can't remember. Does it have an aluminum pan or do you have to drop the subframe to remove it? Either will increase the cost.
I worked with VW for about 10 years. You need to get a detailed estimate on what is being done. Stuff ain't cheap. Oops, just noticed it's a turbo. That alone can increase costs substantially.
What did you think it was going to cost?