Advice wanted. Garden wall in "recess"

[Jim77]

Hello again
I am building a low (4-5 courses) garden wall using 300x100x75mm Tudorstone. Plan view is like a rectangular staple and dimension of recess is L=2350mm , and the ends are left 900mm (meeting an existing wall) and 600mm (alongside a paving slab step)
My problem is - Where do I start?

Do I try to centre along the long edge>? Or do I start just proud of front of paved step and work back to the long edge? What would a pro do?

I am trying to avoid any silly small inserts but my head is spinning from the number of options.

Any advice appreciated.

thanks
Jim

 

[theoldun]

Lay a course out dry. With the measurements you have given, they will work out near enough. Open perps out a tad. You will have half block on 600mm return.
old un.

 

[Jim77]

Thank you, old un.
I'll try a dry layout tonight - if weather holds.

Jim