Started the week by finishing the end caps and assembling the replacement destination blind rollers.  Next job was to wind the blind fully onto the bottom roller and attach it to the new top roller.  Then I was able to wind it into the destination box and attach it to the new bottom roller that I had previously installed.  Having done that, it was clear that the 20W bulbs in the destination blind box were too bright, so I need to find some lower wattage ones.