Actually... it's simple math.
The "real life" Deathscythe is 16.3 meters tall...
http://www.gundamw.net/index.php?id=pages/gw_deathscythe
This data was checked against the archive of the great Gundam Project (as if Gundam Plus was not enough).
16.3 meters converts to roughly 53 feet...
http://www.psinvention.com/zoetic/convert.htm (you can enter in your starting number and convert to English standards [meters to feet in this case]).
It's 1:2 scale so you immedaitely take 53 feet and divide by 2. That equals 26.5. Now, I have not built legs for the Gundam. Hence why it is a "bust". Once again I encourage people to reference the Gundam Plus data page as it has an excellent picture of the Deathscythe. Essentially it has been built from the waste up. To be more exact, from the very bottom of the cockpit (or directly above the infamous "kilt" of Deathscythe"). As you can tell, simply not building the legs takes a over half of the height out of the gundam. So once again, lets bust out our calculators...
26.5 divide by 2 = 13.25. This would be the height of the 1:2 bust were the legs comprised exactly half the height of a Gundam and the torso/head the rest. As stated before, the legs take up slightly MORE than half. My Gundam is a smidge over 12 feet tall. Thus, it is pretty much dead on. Believe me, I spent over a month planning on my measurements for this to make it as close as possible. It is not 100% accurate, but it is within 6 inches of being dead on.
And yes, you can fit inside of it.
As for the comments of it will "fail"... sorry to tell you, but it's already succeeded. The gundam is 95% complete. There is no room left for it to "fail". Now, to address the reason why I built Deathscythe, it's simple. I built my favorite Gundam of all time. Deathscythe is by no means the most popular - but who gives a frell? If you're going to invest the amount of money and time I have (over 14 months of work) then you're going to build the Gundam you want.
I did it for my own personal satisfaction. It was only once the Gundam was half way completed that I even had the idea to show it off to the rest of the world at MTAC (www.mtac.net).
And yeah, I do occasionally visit the ToonZone forums. I have also been operating in the anime community under the name BrundelFly for well over four years as well.
Signed,
BrundelFly - Anime Adrenaline
-Home Gundam Builder