Talkin About The Post Office........

That's very doable, it also costs quite a bit of money too. $150 or more.
It was many years ago and I can't remember the cost but probably $20 or less. I think I was buying a radio controlled Travelaire Model R Mystery Ship airplane kit. It was from a classified ad probably in the 1980s. It was first payment got the kit. He wouldn't hold it waiting for a check in the mail.