Better folks than me to talk about this. However, black arkansas and dolgo are two real tough ones. What will make the difference is the right rootstock for your soil. Im the complete opposite, I find a more flood resistant rootstock. Guessing dolgo rootstock would be pretty good. B118 in sandy soil would be pretty good for drought resistance.
Site prep can make or break it too. Amending the soil with manure is an easy way for the soil to retain moisture. Any kind of mulching helps alot. Eliminating weeds around the tree removes competition for water from the soil. Some weeds can root as deep as trees can.
Slow watering is preffered too. Take a bucket and drill a 1/8 in ch hole in it. It allows the water to go deeper. Even if you want to water the tree with 10 gallons, just putting half in a 5 gallon bucket with a hole makes a very noticeable difference. In 2023 I water some young trees with identical amounts of water. One got the bucket with the hole and the others just the hose. I stopped the experiemnt after about a month and a half. Could see the difference in growth that quickly.
Also, staking the trees helps. It keeps the roots from being stretched and damaged by the wind. Another I tried hald n half and saw the difference in a few months.
I cover the top of the cages with burlap on my freshly grafted trees. IT helps the tree get some hootest part of the day shade. Planting right next to a taller tree can help out in year one. After the hot season, cut the tree down. Planting the the southeast side might be about ideal. Gets sun during the morning, then gets some afternoon shade.
When planting, you can drive a few holes in the area with metal rod. Open it up a bit by swirling around. Then fille up the hole with dirt and pack it in a bit. Make a fast track for some roots to find water.
One member on here using a post hole digger to plant apple trees. Similar concept.
MY trees haven't seen a severe drought up in NY yet. However when a tree is lacking water, it is also lacking nutrients. I add a light dose of miracle grow when I water stressed trees. MAybe 1/3 or so of recommended. They have a scoop they recommned for the average watering can about 2 gallons. I put a level scoop in a 5 gallon water jug. Under real stress I would do even lighter maybe 2/3rds to 1/2 scoop.
Guys on here also have used water holding gels. I have used water gels on bareroot dogwood and pine trees. They did better than other trees I have planted. The local water and soil district sold me bareroots dipped. They get them from the state nursery. Which I have ordered from the state nursery. So, basically theyre the same trees.
Packing the soil helps too. Too loose and it evaporates quicker. I very finely break up a small amount of soil for a tree planting. That soil is used in the center part of the rootball. Get and voids filled up better. Rootbals are almost 2 dimentional wen you get them. They're all layed ontop of each other while they were spread out in their nursery spot. I try to recreate that, A little soil then a layer or root. Sometimes lanting to quickly can make the roots end up in clumps.
At camp I have sandy soil and its 4 hours away from home, so they rarely get watered. I bring up some heavier clay soil from home for soil retention. Sometimes you can source materials without getting them from the store. However, peat moss is a real good thing to add for several reasons including moisture retention.