I did find that perfect 5-Panel Door Repurposed Into A Headboard.
I rolled two coats of white exterior latex paint over the sign.
Instead of a wooden post cap we used a solar light post cap so the Welcome sign would be illuminated at night.
The black metal bracket holding the sign was purchased from the dollar store. I drilled two holes into the bottom of the bracket as well as the top of the wood sign, lining the holes up, to accommodate plastic coated wire to hang it with.
The Welcome Sign Post has since been moved to our front flower bed so it can be seen from the front driveway. The sign is changed for a Happy Holidays sign in late November.