It would but no-one seems to be sure about the restrictions on where you can cut it. The listing says it can only be cut in 1 metre increments but we're not sure if that's 100% correct. Might be worth a try as it might work if you just leave a minimum of 1 DC-DC converter per metre.
5V strip works well for cluster elements. It's a bit cheaper, it can be cut anywhere and the 5V voltage drop isn't such a problem when you're dealing with a large number of pixels in a small area near their power source.
http://www.aliexpress.com/store/product/5m-30LEDs-m-DC5V-addressable-WS2812B-led-pixel-strip-waterproof-in-silicon-tube-30pcs-WS2812B-M/701799_32356282826.html
You also have the option of higher density 12V strip but that would be BRIGHT.
5V strip works well for cluster elements. It's a bit cheaper, it can be cut anywhere and the 5V voltage drop isn't such a problem when you're dealing with a large number of pixels in a small area near their power source.
http://www.aliexpress.com/store/product/5m-30LEDs-m-DC5V-addressable-WS2812B-led-pixel-strip-waterproof-in-silicon-tube-30pcs-WS2812B-M/701799_32356282826.html
You also have the option of higher density 12V strip but that would be BRIGHT.