Having someone make a map.... $100 worth of their time
Hee hee !!!
Thus speaketh someone who has obviously never attempted it!!!
I've spent at least 40 hours just learning to use the various myriad tools associated with map building, and at an estimate, will spend at least another 60-80 hours on the map I've been making before I'll have it "done" to turn it in to Skuzzy for review.
And then, who knows how much more time will need to be invested before it's acceptable - I've not done it before, and despite taking great care I'm bound to include stuff that won't work or play well.
Even when you've got all the shortcuts down, your tools organized, and don't make a lot of n00b mistakes, I don't see it taking less than about 30 hours of time to construct an MA map that works - and if you paint yourself into a corner so to speak, it might take a lot more.
And that's if you limit yourself to simply using the default terrain textures and associated clutter tiles.