That's a great deal!
To get the smell out of the box, I bought a pair of Odor-Eaters charcoal shoe inserts and put one in the box with the machine. After a couple of weeks, no odor. I actually like keeping it in there, as it provides some cushioning between the foot pedal and the bed of the machine.
I had tried a *lot* of things before the Odor-Eaters -- airing out, soap, fabric softener sheets (added a sickening sweet smell to the moldy odor!) -- and nothing worked.