Are posted in each auction. All charges are by the size and weight of the item. I usually buy mailers so that charge is included in the total price of the shipping you see on the auction page. You will pay a little more than the actual postage on the item just to cover my cost for packaging and the Final value fee for shipping.
Payment is expected with in 2 days of winning my listing.
If payment is not received and I am not contacted I will open a NPB case some point after day 2.
If you do not send payment still with in the 4 days the case is open.
Ebay will close the case and you will receive a strike.
I combine shipping based on Actual WEIGHT and location of buyer. PLUS I charge a small handling fee of about .50-1.00 to offset the cost of shipping supplies and or final value fee on shipping.