The datasheet for the digital potentiometer says in the absolute maximum ratings table: "Voltage on all other pins (PxA, PxW, PxB..." = -0.3 V to Vdd + 0.3 V. Recommended max supply voltage for Vdd is 5.5 V. This means at the potentiometer pins you can use max 5.8 V, and probably it won't work at all for voltages > Vdd.
But my solution doesn't look too complicated. You can get all chips in DIP as well, and the LM4040 voltage reference in TO92-3 (looks like a transistor) for easier testing on a breadboard (the 3 V version of the reference would be the right choice, if the microcontroller and DAC runs with 3.3 V). For the OpAmp anything should do it, like a LM324, if you don't need to go to 0 V (it is not a rail-to-rail OpAmp). But might need some extra calibration. The ADA4522 has low offset voltage and low drift, which means it would be very accurate relatively to the voltage reference without calibration. I would just design a PCB for it and then use all SMD parts, it is actually easier to solder and would be a nice compact module.