Sorry to hear your baby is having a problem adjusting...you got some great ideas here..for me my breeder had me sleep with a receiving blanket for a week and then I took it to her and she had Nathan cuddle up in it...when i brought him home with the blanket he snuggled right up with it and we had no problem with him crying at night etc. He fortunately was a good baby..back in the day we did the waterbottle wrapped in a blanket with a clock under it!!!
That worked great too!! Wish you the best and I am sure he will calm down soon just cuddle and hug him to death!!! he will be fine!!