LCD driverboard kit (HDMI+VGA)= 25$ (this kit uses 12V/10A AC adapter)
Smarter Shopping, Better Living! Aliexpress.com
www.aliexpress.com
12V10A apdapter: 19$
Specifications. charger voltage. Universal ac to dc power adapter, supports input voltage 100-240v 50/60hz to output voltage dc12v10a. Input overcurrent protection. When the input current is greater than 10a, the charger will cut the fuse to avoid fire and other hazards caused by abnormal intern...
www.amazon.com
LCD driverboard kit (DP+HDMI+USB-C) = 75$ (this kit uses 24V5A AC adapter)
Smarter Shopping, Better Living! Aliexpress.com
www.aliexpress.com
How to assemble it to the iMac: (Internal speakers are usable)
Webcam = 29$ (1080p with independent tilting and rotating capability)
Experience Magnificent Full-HD 1080P -This USB Webcam comes with enhanced capability utilizing the CMOS ⅓ image sensor. Wide 70° viewing angle, no optical distortion. Great for webinars, and video conferencing. Privacy Cover -The Amcrest 1080p HD Webcam comes with a Privacy Cover, the privacy cov...
www.amazon.com
Webcam = 5$ (to replace the isightCamera slot)
Find many great new & used options and get the best deals for Camera Module 1 Megapixel QR Code Plug And Play 720P H-D 30fps OV9726 For Laptop at the best online prices at eBay! Free shipping for many products!
www.ebay.com
How to turn your iSightCamera to USB camera: (may lost the microphone)
USB-C hub = 23$
Amazon Basics 4-in-1 USB C Adapter with USB-C to HDMI, Ethernet Port, USB 3.0 and 100W Power Delivery
www.amazon.com
Or you can pay 370$ for Juicy Crumb DockPro, if you have that money.
juicycrumb.com
I would be a compulsory idiot if I ever consider buying that circuit board instead of a brand new 4k LCD monitor (399$)
Upgrade to an LG IPS 4K screen, delivering ultra HD resolution with supremely accurate colors, even when viewed off-angle. The 27-inch display offers versatility of USB Type C connectivity (90 Watt power delivery) for data transfer, 4K display, and charging multiple devices. Experience smooth gam...
www.amazon.com