With thanks Everyone
" Relies upon. " I just don’t possess a better reply than that for yourself, and here’s the key reason why:
1) " Depends" on whether the pages in the previous site were coded good enough to copy/paste your code over to the present site without matter (probably not about to happen).
2) " Depends" on how you know Adobe Illustrator and how good you happen to be at writing batch files to perform the watermarks (best method to handle that).
3) " Depends" on the site builder itself. Some are easier than others to promote (although they almost all suck).
4) " Depends" within the nature of the friendship you might have with your buyers (make sure you get a contract in order that business is business and friendship is friendship rather than the twain can meet, by that way).
5) " Depends" on the marketplace in your small town and also what you think you may get per hour not having screwing someone over along the way.
So I don’t really have a straight universal answer to suit your needs, nor are you likely to find one. That’s the nature on the beast.
As long as what this is named I’d just call it website servicing and enhancement. But that’s me.
Your dog NAILED IT… There is not a number you could applied this unless you know all of the variables…