The Pathfinder's likely a winter beater. At least that's what I'd assume if it's only worth 2k.
Anyhow, his Z's going to be a tough sell. Sentimental value of 17k does not mean 17k market value. Being a 20 yo car and highly modified, the demand will be slim to none. Might as well keep it till it dies, cuz what he'll get and what he wants will be so far apart he'll fall into depression.