Cycads have been around for millions of years. I think they'll survive in any kind of soil that you find at HD. I once wanted to move a small one that was in a very dry spot. I dug down as far as I could and popped the shovel up. I had cut the root across and the plant flew up with a very small piece of the root. I figured I had killed it, so just threw it under some shrubs. Where the in ground root was left, a new shoot came up. The cast off cut cycad had rooted under the shrub also. I then had two cycads! It's hard to kill a cycad, unless the bugs get into them.
Go get your potting soil! Just close the box and walk away. Be sure to let us see them when you get them potted up.