For sale, set of 2 used, low hours, Blackmagic Design SmartScope Duo 4k monitors.
https://www.blackmagicdesign.com/products/smartview
and
For sale, x1 used, low hours, Blackmagic DeckLink Mini Monitor 4K
Prefer shipping to U.S., but will work with you internationally if needed.
Make me an offer and I’ll likely accept.