Amazon has the Acer CB282K smiiprx FreeSync Zero Frame 4K UHD 28" IPS Monitor (CB282K smiiprx) for $300 with free shipping. List price: $350. Features 3840 x 2160 (4K UHD), AMD Radeon FreeSync, 90% DCI-P3 Wide Color Gamut, 300 nits brightness, 4ms response time, height, tilt and pivot adjustment, 2 x HDMI 2.0, 1 x DisplayPort.
Has good Amazon Reviews.
Amazon has the Osir HP 950XL/951XL Compatible Ink for $23 - $12 off with coupon HR84ZRE3 = $11 with free shipping on $25+ or with Prime. Includes 2 black, 1 cyan, 1 magenta, and 1 yellow, compatible with HP OfficeJet Pro (check product page for specific models).
Has excellent Amazon Reviews.