Ye I'm sorry to hear, but try to be positive!
It would have been better if they had a first meal before shipment
Anyway, I have a little story which might give you hopes on a good arrival.
A spider I had sent to a very friendly Swedish guy arrived alive. It didnt have the delay you had, but they were a sensitive species and I packed it with a 'heatpack'. Turned out, it was not a regular heat pack, but a hand warming tool. Only good for about 1h. I was a tool, not checking it first.
As you know, mail to Sweden is with the airplane and what not. The styrofoam box missed the lid upon arrival and the spiders prolly have been abused by the postal services because it was very light boxed and just taped up again.
They arrived alive and kicking. The person was very happy, so was I.
The same species I had at that time, suffered from DKS. A small spider i had to put out of his misery because of this.
I also had hottentotta scorplings, which one got DKS too.. Surprisingly it pulled through!!!
Also, I ordered some more scorplings about a year ago. The box was, when it left, square. When it arrived at my place it looked more like a feeding ball. Alle messed up and even opened. Again, with a tape on it saying : 'this package has been damaged. We are sorry for the inconvenience'. It was a 4 day travel with a semi cut open box. They all survived and were i2 at the time.
Now the moral of this story:
The little buggers are stronger than you think they are. They certainly are hardier than any other spider.. so my guess is, if you get them. They will be alive.
My second guess is, if you offer them a pinhead, they will get it from the first minute and your worries are over. All scorplings I have and had, are ferocious eaters.. but they can take a week or two without food. Dehydration is a more urgent matter tbh. Good thing a box doesnt get too hot and there is no sunlight. The bit of moist in there, will stay in there.
I hope for you it arrives real real soon now though. Good luck!