[PC] I think I want to sell, but I am not even sure what it is worth. Dell R440

I have a Dell R440 that I haven't been using for a little while now. I am not sure what it is worth at all, so here are the specs: Dual Xeon Gold 6252 with 24 cores each for a total of 48 cores. The machine currently has 160gb of ECC DDR4 RAM, but they are not matched (I think maybe 96gb is matched). Currently only has 3 out of 8 2.5-inch drive sleds (no drives will be included). I took some pictures yesterday with the intention of writing this up then, but got busy. Has a raid card too, honestly not sure if that is implied/standard.