Having the day off, I am getting somewhere with my temple stairs.
I started by making a template marking up the metal base I am going to use - for two reasons: 1) it will add weight to the stairs, making them less prone to topple over, and 2) I can store the stairs securely in one of my boxes with a magnetic sheet in the bottom.
After marking up the footprint of the stairs, I cut out the base with a hacksaw.
I have cut and carved the first five layers of 5mm foamboard - the fifth layer will have the first step wide enough for a mini's base (if I have calculated correctly, there should be three such ledges in total), thus I have carved the stone slabs about 3cm into it.
I expect to do at least the next five layers this afternoon, but now it is time for some excercises, a 5km run!