Sounds like a cool project—just make sure you keep the parts lightweight but sturdy. For the smart valves, use servo‑driven solenoids with a quick‑release lever—tween the 24‑V solenoids and a 12‑V stepper motor if you want finer control. Keep the piping in 316 stainless or PEX‑R to avoid corrosion, and add a check‑valve upstream so the pump never has to suck in air. For the low‑friction pump, a gear pump with PTFE bearings works great; you can bolt it to a 3‑axis frame made of aluminum or carbon fiber so the whole rig stays compact. Don’t forget a small reservoir with a pressure‑sensing line so the system can auto‑adjust the flow when the plant DNA report hits the controller. And if the pump starts whining, a little silicone grease on the impeller seals will keep it running smoother. Let me know if you need a quick sketch or a list of part specs.