Just buy a Sony HAP-Z1ES and you are done. Connect it to your integrated amp using XLR cables if possible. It takes care of everything. Sounds very good too. Not too expensive. I have heard it at shows in megabux systems.
With Bluesound, I would get an external DAC and maybe a reclocker and lots of digital cables of excellent quality. Sony is cheaper and immediate gratification.
Steve N.Empirical Audio