I would get a KRELL K-300i integrated for those Wilson’s. One unit, plug in your Ethernet and done. The internal DAC is as good as all internal DACs (so not the top tier) but the sonics of the KRELL are great. It also has the very best ROON READY integration with adjustable volume from the ROON Client. No one else I have tried has that feature.
I sold the KRELL K-300i to buy the KRELL DUO 175XD amp. I sold that to most likely buy the just released KRELL KSA-i400 amp. I am wavering on the size of the amp. The K-300i integrated is also a little big in the depth department. Though not too big. These 3 amps I listed are all based on the latest iBias and XD tech they have. Super smooth Class A with no heat. I am a sonic details guy, and I am very surprised at how much I like the new KRELL gear. It is warmer and smoother than what I normally like.
I used the Benchmark LA4 preamp with the 175XD and will do so with the KSA-i400.