In your situation my preference would be a simple flat pan. I don't think you're going to see any real added benefit from a divided pan because as you said, you may have trouble getting enough sap to run it as it is intended. And don't think that a flat pan will resign you to all dark syrup. There are plenty of guys that have made very light syrup in a flat pan, especially at the beginning of the season. Also, a flat pan is likely to be less expensive than a divided pan if you're having it welded up, although probably not significantly.
Homemade 2X4 w/Flat Pan
50 taps....but always looking to expand
Mostly box elders with a scattering of red, silver, & sugar maples
Allis Chalmers C & Homemade Sap Sled