I just had a quick look at the site again (If I recall I looked at them a while ago when looking for an ATX LPSU) and at those prices I can't see why anyone would choose to modify a 218 and not just buy a better streamer.
By the time you add it all all up you aren't too far off an 818 but with much less hassle.

Sources: MS600, Fidelity Audio Reference Oppo UHD-203, Roon/QNAP, AppleTV 4K
Processors: Arcam AV40, 271 x2, Lumagen 5348 with Keces P8
Speakers: DSP7200SE FL/FR, DSP5200SE VC, DSP3200 x11, DSP320.2 VOG, DSW x4
Display: JVC DLA-N7 with PK-EM2, Panamorph Phoenix Pro, 128" 2.37 Curved Silver Ticket AT Screen