I have stocked Tilapia from
Jones Fish every year since 2013. They will stock them 1) after they receive their supplies from "down South" and 2) when they schedule a truck through your area (most likely it would be the same trip as mine). Jones' Tilapia delivery to me has always been in the last 10 days of May. Sometimes I wish they came sooner, but given the variations in Ohio Springs, that is honestly as soon as water temps high enough to ensure survival every year.
If you are interested, pricing is as advertised. In 18 years of getting fish from them, the fish always come healthy and as described wrt size.