Hi William, my name is ***** ***** I will do my best to assist you.
A few things of note, whether you pay someone else or you pay to build this business blog yourself. There are certain overhead fees you would have to pay yearly.
For instance, lets say you have a wordpress blog. It has to be hosted somewhere, such as on godaddy.
So you pay godaddy yearly for hosting your webpage. Now, lets say you want a business specific contact email, such as ***@******.*** Youd again need to pay go daddy for that.
Prices of course fluctuate and vary depending on what sales and offers are running. But generally for a webhost and email host you are looking at around 5$ a month currently.. As seen here https://www.godaddy.com/hosting/plesk-hosting
Any actual design fees would be separate and above the standard web hosting fees that youd pay to go daddy.
And it sounds like you want someone to design the page to meet your specifications. And also, use a theme thats easy enough for you to add or change going forward..
Does that about sum it up?