Bill of Materials for one actuator:
Belts (Qt.1): 86 Tooth GT2 Timming Belt (https://www.amazon.com/gp/product/B0CDP77QM6/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&th=1)

Micrometers:

Micrometer shaft pulley:

Endstop Trigger: