OS X Mavericks (10.9) - Hackintosh Instructions, Hackintosh How To Guides: Hackintosh.tools

Although official OS X 10.10 "Yosemite" and even OS X 10.11 "El Capitan" hardware compatibility essentially is the same, you still may prefer to have your vintage Hackintosh run OS X 10.9 "Mavericks" whether for software compatibility or simply because you do not like the "flat" interface design that OS X "Yosemite" introduced to the platform.
Quality Hackintosh tutorials for Mavericks include:

Tutorials

Name	Description
Install OS X 10.9 Mavericks	An OS X 10.9 Mavericks Hackintosh installation guide from tonymacx86 using the site's UniBeast app. The site also covers the OS X 10.9.1, 10.9.2, 10.9.3, 10.9.4, and 10.9.5 updates.
Installing OS X 10.9 Mavericks with myHack	From MacBreaker, a how to installation guide for OS X Mavericks using the sophisticated myHack app. If the "official" guide (above) isn't sufficient, you also may find this site's OS X Mavericks Unibeast tutorial and its tutorial for the sketchy Niresh distro helpful, too.
OS X 10.9 Mavericks Installation on Gigabyte Motherboards	Explains how to install OS X Mavericks, as well as Lion and Mountain Lion, on Gigabyte motherboards using the Hackinstaller script. This tutorial also includes a list of FAQs that can be quite helpful for troubleshooting.
Install OS X Mavericks in Virtualbox	From MacBreaker, explains how to install OS X Mavericks in Virtualbox using the dodgy Niresh distro.
Dual Boot OS X Mavericks & Windows 8/8.1	A brief guide to dual boot both OS X Mavericks and Windows 8/8.1 on UEFI-based Hackintosh systems using the Clover bootloader program.
Upgrading Mountain Lion to Mavericks	Explains how to upgrade a Gigabyte Z68X-UD3H-B3-based Hackintosh from OS X 10.8.5 Mountain Lion to OS X 10.9 Mavericks using MultiBeast, Chimera, and other apps.
Building a Hackintosh with Quo's Any OS Motherboard	An interesting piece from TechSpot that covers both the Quo "Any OS" (AOS) motherboard -- quietly designed to be as compatible as possible with OS X -- and OS X Mavericks installation and configuration.
Install OS X Mavericks on Your Hackintosh	An archived guide to building a Hackintosh from Lifehacker. Covers hardware selection and construction as well as installing OS X Mavericks.
Create a Bootable OS X 10.9 Mavericks Thumb Drive	An ArsTechnica tutorial that explains how to create a bootable OS X Mavericks USB flash drive for a Hackintosh (or a Mac) with the (subsequently discontinued) DiskMaker X.

Usability Videos

Description	Videos
This video -- from Roche Technology -- demonstrates how to install OS X Mavericks (10.9) using Chimera, MultiBeast, and the "ShowHiddenFiles" app. This instructional video is particularly useful for anyone who wants to install a "plain vanilla" version of Mavericks and have a solid understanding of the underlying process.