Digital BW, The Print

My advice:

Do not under any circumstance by the Design and expect it to make a 
decent printer profile!

I own it (bought it only for the spectro), and the 45 patches that it 
uses will not make a decent printer profile on any paper that I tried. 
You should be able to use the spectro with the free Argyll CMS 
software, but I haven't tried it yet. If you find a used Design for a 
really good price, then it might be worth adding the full RGB or CMYK 
module to make real profiles.