You should consider rdwc, simple to setup. Tubing, some grommets, drill bits, and water pumps. I've done the upstairs watering and it's pure awful. Water chiller is almost required but u can work around it
Get some hose and an indoor tap connector to save your back as well.
Once they get big as well the change outs are much more problematic your setting yourself up for a ton of work and dangerous water temps.
Feeling for u as I almost crippled myself carrying damn buckets upstairs every other day
I run 70lph in my ucxxl 4 system with 5 13 gallon buckets, double your air pumps and if possible keep them near cold air intake