The first question is do you like your existing sound profile and want more or is there something that you want to change? The PS Audio DSD is a radically different sound which is bigger and more dynamic but softer, warmer and sweeter. It will be more relaxed than the qutest. That may or may not be a good thing.
What do you like or dislike about the Qutest/bluesound setup? Auralic is popular but can struggle a hair in the used market. If you like what you have I might look and see if you can find a used/open box/demo Musical Fidelity M6x DAC. This unit will tonally be similar to the qutest but deliver a larger soundstage.
RME makes a nice DAC that would be a elevation from what you have. The ADI-2 is excellent for the money.
For streamer, you could pair it with a Musical Fidelity MX Stream or innuos Pulse Mini. I think the Innuos is amazing for the money. You need to find some deal or find a dealer who be willing to flex a bit to stay on budget but that likely requires just a smidge of time and patience.