I don't understand. EVERY DAY people come here and ask for "cheap" stuff because they are "broke" and "don't have much money" because they are a "poor college student" and only have "$200 total to do this conversion".
Well. Now you have an inexpensive bike that you can get today from Walmart down the street for $150.
If Walmart is good enough for college students (and lots and lots of other people) to buy 99% of their daily/weekly/monthly/annual needs...what's wrong with buying a single speed from there, too?