Ok, the next parts really bothered me.
The next pictures are all about double layers, combining parts, creating pillars...
...and well, the final result =)
I had to create my own stand for the figure (in Google Sketchup). As i mentioned before i don't believe that the legs can take all the weight on their own. So i decided to put the weight on these two pillars. The legs won't touch the ground in the end -there will be about 1 cm between ground and feet- so they don't have to take any weight.
Oh, by the way, the model is still removable from the stand...it is not glued to it.
Here you can see the double layered part on the bottom of the body. Inside of it i inserted the second pillar.