city grid on landscape

base with 2X2 block

15mm mdf sectional profile of slope and wall support

3mm mdf plane

1.5mm ply for wall
I worked out material for whole construction today.
Screen shot shows how we are going to build with what.
2X2 frame still seems a lot so I will go to workshop in monday morning to ask Tris where we don't need support.
Here is list of material we need with quantity.
MDF 15mm X 8 sheets(2440X1220)
*I may replace wall part of sectional profile of this material with 2X2 and just keep curvy
part same
MDF 3mmX4 sheets
PLYWOOD 3mm X 4 sheets
2X4 BLOCK 1178 cm
2X2 BLOCK 6000cm