My policy, if you are a South Carolina Resident you show me your valid CWP and your driver's license and I will photograph them, then you pay me and you get the gun.
If you want gun shipped advise me of the address the package will go to. I will weigh package and get a shipping quote from FEDEX or UPS, your choice and notify you.
You get US Postal Money Order(s) for the total amount of gun and shipping and send them with a SIGNED COPY of your local dealer's FFL and his shipping address. If you have a CWP from your state I need a scan of that along with a scan of your driver's license.
That way I make one trip to town, cash the postal money orders at PO, go to shipping point and show them the FFL of where it is going and pay for the shipping and send you a tracking number and a scan of the shipping paperwork.
I live 25 miles from town so I drive 50 miles just to ship and the post office is within a couple of miles of UPS/FEDEX shipping points.
I have been advised by my credit union that Cashier's Checks are not advisable and they take time to clear and they told me there is a big market on phony cashier's checks these days so they deposit the check but I can't get the money until it clears which I am told is upwards of a week and at times longer. On the other hand the post office puts in the numbers of the Money Orders and they know immediately if they are good and they give you the cash money which works for me.