all your equip looks pretty good. although i would recommend a digital ph meter as they are way more precise. and if you foliar feed and use mylar it looses its reflectivity very quickly and needs to be cleaned alot

on the hydro kit you can make yourself with a good drill and some good silicone and afew parts for about 25-35 depending on pump price, and alittle know how. theres alot of info here on diys if you feel comfortable
if you want a hydro setup i would recommend using a hydro fert