There seem to be dozens of build threads for a subwoofer in a tuffy console. The only issue that I can see is whether the Sundown would fit. I see it as a dual 2-ohm subwoofer @400watts RMS, which could be wired for 4-ohms. The reviews on it at Amazon seem great. I saw no question on the quality.
Amazon.com: SA-8 D2 - Sundown Audio 8" Dual 2-Ohm SA Series Subwoofer: Car Electronics
This is a huge subwoofer. But, from what I'm seeing the bottom is open and the inside seems to have good square dimensions. So, fabricating a box should be fairly easy, depending on whether the box is deep enough for the Sundown.
Tuffy Center Console 8" subwoofer project - JeepForum.com
As far as fabricating the box itself, it will be different depending on the depth of the subwoofer itself.
Trying goggling Wrangler Tuffy Console Subwoofer. Like I said, I found dozens of threads.