Quantity   Component name
1 × mirror
1 × wood for building a platform (eventually this should probably be aluminium)
16 × wood screws
3 × universal joint https://www.ebay.co.uk/itm/N10206-Uni-Universal-Joint-Cup-Silver-Alloy-11mm-Outer-6mm-Inner-Diameter/362698807320
2 × lever switches, ideally waterproof https://www.ebay.co.uk/itm/Waterproof-Micro-switch-IP67-5A-WS2-changeover-SPDT-Microswitch-200mm-leads/330917419333
2 × motor driver https://www.ebay.co.uk/itm/42-57-86-TB6600-1-Axis-Stepper-Motor-Driver-32-Segment-for-CNC-Engraving-Machine/352981992806
3 × FT232RL UART TO USB https://www.ebay.co.uk/itm/USB-To-TTL-FT232RL-FTDI-Serial-Adapter-Converter-Module-For-Arduino-3-3V-5V-Mini/222727769676
1 × PC/LAPTOP
1 × Free to use non commercial non academic labview 2020 https://www.ni.com/en-gb/support/downloads/software-products/download.labview.html#346254
1 × power supply 24V https://www.amazon.co.uk/Vbestlife-100-240V-Converter-Switching-Transformers-default/dp/B07KPCCQBS
1 × AAA battery holder £0.99
1 × solar panel £1.09 to charge the batteries
1 × Total price: approx £35 or $51