Oil free diaphragm pump
Vacuum control switch so it doesn’t run constantly.
Churrrr
NZ$ 132.61 10％ Off | TC-100 AC110V/220V Oilless Diaphragm Vacuum Pump 100w Medical mute pump with 24L/min vacuum flow
https://a.aliexpress.com/_sw1W6a
NZ$ 3.72 2％ Off | 6mm 1/4" Universal Silicone Air Vacuum Hose/Line/Pipe/Tube 2/3/5 meter BLACK 10X6mm
https://a.aliexpress.com/_sdhl4K
https://www.smcpneumatics.com/poweraire/Miniature_Pneumatic_Components.pdf#page15
Plus brass fittings and stuff from a gas fitting shop. Some one way valves.