I don’t want to guess about what a good price for one in CT is.
I will say however, that you may wish to avoid, or at least do some research on, the Cummins engines with the VP44 injection pumps. I’m not sure exactly, but I think they were 98-02ish.
Here’s a start:
http://www.bluechipdiesel.com/injectionpumpfailures.html