ABC,
Archie and Brandon (Neo) have actually given you good tips. Both are very helpful and knowable members. They are right in pointing that there is a lot of good material out there that might help you with your query. For example on websites such as MOPO. And as they have said, your post is a bit tricky to read (particularly on a mobile phone!)
I read with interest your post as I have a couple of WCs. I understand that the shipping needs vary according to the cardstock thickness of the WC. I am sure you know that some WC can be shipped out in tubes, but others need to be sent out flat.
In case this is of any help, all my WC have been shipped to me
flat in a sandwich form (sandwiched x 3 times to avoid damage on transit).
1- The WC was placed between thick cardboard that was slightly larger than the WC and into a plastic envelope.
2- That plastic envelope was sandwiched between a thick foamcore
3- The foamcore was sandwiched in a slightly larger thick cardboard
4- The thick cardboard was placed inside a special box/ envelop form full of bubblewrapp to ensure that the WC didn’t bend on transit.
Mine could not be sent rolled in a tube, but maybe your WCs can. And if so, a sturdy tube with bubblewrapp should do.
In any case, collectors know how important good shipping is. I am sure that all your buyers will appreciate your efforts in getting it right!
All the best and good luck
R