Adafruit sells VS1053 breakout boards, but good luck locating the Eagle cad files. If you do, please post here. I am interested as well. One reason you don't want to integrate the chip on your board is the added complexity to your board may reduce yield of working boards. I'd be happy just having pin headers to incorporate the breakout board. Otherwise, a lot of parts to source and make sure they are correct.
Are you making a lot of boards or just a few?