I have got the Lord of Iron out and have had a good little play with the sculpt to see how best to pose him.
His gaming base has a part of a destroyed Cerastus which he stands on. It has two little slots which sets him in the correct place.
Many people like to have a regular sandy base with the option of slotting onto display detailed base which comes with the big box.
So good news is you can easily make a rocky slot base which you can swap between. He is leaning slightly forward, but as long as about an additional 5mm at the leading leg up on something, it really works.