[AMRadio] Price suggestion

[CL in NC]

My friend Lea, K4VWD wants to sell his Elmac PMR 7, cant recall the number of the  Elmac power supply for it that has the S meter in the front, and a Hallicrafters R-47 speaker.  These are in very good condition, and 100% working.  I have tried to find what these sell for, but the only thing I have found is the speaker, which has sold from 30 to 60 bucks.  He is selling to another ham in the area, and would really like to know what is a good price to expect for these, not Epay ripoff and not giveaway, but fair.  If you really wanted this receiver and probably what is a rare supply for it, what would you pay?

Charlie, W4MEC in NC