We've also placed our order with Greenhouse Megastore. Since I ordered 10 more blue 1020 trays, I will have several extra black "mega heavy duty" trays and a few non-vented domes (lets say 5 of each) that have never been used. If interested, I'll figure out the price per each from my order history. They look to be nearly as sturdy as the PermaNest trays I used for almost 20 years, although I don't yet know how they will hold up to UV over time.
Likewise, I've got deep 36-cell and 48-cell inserts (sheet of six 6-pack pots, perforated for easy separation) as well as some web type carry trays, all 1020 size (10x20"). I order stuff like this in bulk every few years, so I generally have extras.