Pcb specs

I’ve got access to a circuit board plotter to crank out the Shruthi-1 PCBs, but I’m not sure what spec board I should be working with. How much copper do I need? 1oz? 1/2oz? 1/4oz? Any other wisdom before I commit to this?

Many thanks! Great project!

The boards I sell have 35um thickness (1 oz / sq ft). 1.6mm thickness, Tg140, FR4 material.