Here are some tips for anyone who orders a part from a salvage yard, or auto dismantler that is not local to you.
After verifying that they have the part in question in their inventory, ask them if the part is ready to ship or if it has to be pulled from the donor vehicle. Also ask them to provide a breakdown of the total cost estimate. Most yards will only provide an estimate especially on parts they have that are ready to ship. Parts that are still on the vehicle may not have cost estimates as complications can obviously arise when removing said part.
Shipping these days seems to be all over the board. Yes USPS prices might be stable, but you never know when you are going to get the shipment. My experience with USPS next day mail has not been great. Lastly get a copy of the yard's warranty on all part types......electrical, mechanical, body and trim. Some yards will not provide any warranty on electrical items, and most only offer an exchange or credit on the original purchase. For trim and decorative items, shipping damage waivers are usually stated in terms and conditions.