ok i found it looking through all of my old WD.

i figure, basing on that, ill cut the legs at the hip joint and fill in gaps with green stuff. a green stuff saddle like thing might also be good. ill have to get a combat squad box for the extra arms and bolters, cause they need twin linked bolters...
btw im doin 5 of these guys for $60. it shall be fun. thx for your help guys

more green stuff experiance though....