I had a JV-3 at a previous job, and it ran nearly 24/5 .... never had problems with it other than keeping it clean. I had set up a webcam I could look at from home and keep an eye on the prints. Get you one of those, and set up logmein.com on your pc so you can stop the jobs if you notice troubles with your prints coming off of your machine.
That was 5 years ago, and I just got a JV33 with the uninterruptable ink supply for that very reason - I am going to (hopefully) have enough business to run it night and day. A little help for you, if I am not mistaken, my old JV3 is still running almost non-stop still today. I wouldn't worry about it, personally.
Congrats on the great order! Send some my way
-Pete