Not sure if you have craiglist.org near you or not, but if you do, suggest you search there for an inexpensive or free monitor. Looking briefly on CL near me, there are lots of folks with free 15-19" CRT monitors out there, there are 5 15" LCD monitors in and around my town for under $20, and one 17" LCD monitor that can be had for $20. You could also look on freecycle to see if there's anything out there for you as well.
I almost hesitate to mention it, but I suppose if your facility doesn't train with ES, you could try ASRC....