Hey Mike,
dont know if it helps but when I sold and shipped my girdled block this is how i did it
cut a piece of wood just larger then the widest part of the block
took it to my buddies shop and used his band strap machine to strap block to the ply wood
then a couple layers of cardboard under plywood
couple of inches of foam and cardboard around sides and top
back to band strap and strapped box shut
ship FedEx from LA to Philly for $112
buyer was very happy when he received the block
let me know if i can help
Dave