Here are the assembly instructions for the other Phase three Strain in the game - the Brimstone. The parts go together very easily for this one - there are definite locations for each of the limbs. I found it easiest to attach three of the limbs first - making sure the contact with the ground was level while the glue was drying. It should be fine though as the fittings are accurate. When the first three limbs were on - I glued it to the base, then added the final leg.
Here are the components -
And here is the stage by stage assembly -