Hi @jas1964 and welcome to the Community!
Alas, the certified preowned Moto G5 Plus was available as part of Republic’s Spring Stockout sale. Now that it’s out of stock, it isn’t going to be restocked as Motorola no longer manufactures the phone.
If you remain interested in the G5 Plus, Motorola still has stock: https://www.motorola.com/us/products/moto-g-family. You’ll need to scroll to the bottom of the page.
When sourcing elsewhere, you’ll need to acquire separately a new Republic SIM. So that we point you in the right direction coverage wise, would you be willing to share a zip code (nothing more)?