HTD belts and pulleys: transmission

Hello,


I need to connect 5 stepper motors to his corresponding 5 axis, in a
micromill and microlathe (similar size to sherline). My first idea
was to use 5M HTD belts and pulleys, but the price is very high. I am
now looking for a homebrew solution, or more cheap industrial
solution. But I don't have still any interesting idea. I know Uni-Lat
coupling, but it's also expensive and supports less torque for small
coupling diameters.

Some ideas? Thanks in advance,

Salvador.