I did so work on my R2 legs and also took my mess-up frame ring to use as a dome ring to keep my dome stable.
Now onto the legs and shoulder disk...
I took my legs outside and drilled holes in the 1/2 layer facing the frame and the shoulder disks. I followed Victor Franco's tutorial to put it all together and and almost done drilling holes and putting bolts and t-nuts in. I drilled a wire hole in the leg layer and shoulder disk as well.
Victor's tutorial... http://pw2.netcom.com/~artoodetoo/LegTutorial.pdf
His blog is really good for studying and building.
Now R2 looks like this...a pile on my fireplace, not in it.