If it's got the standard Photomic DP-1 finder, in the condition you describe, and 100% functional, the the body alone might fetch between $300 - 500 USD. Clean black bodies bring a higher price than chrome. If it's got a later finder like the DP-12, seen
here, then that'll push it to the higher end of the range. Often, the F2 meter heads need service after many years, so even if it looks pristine it's common for the meter to be inaccurate or non-functional. These usually cost a few hundred to have serviced.
If the lens is also in similar condition to the body, optically and mechanically, an early non-AI lens might run around $100 and a later AIS lens between $150-200.
The only case in which the value's going to be significantly higher is if the camera is truly new, with the original box, instructions, etc. Then you've got collectors who are willing to pay more for one of these - maybe up to $1000?