What is my cars value?

I have a 2005 IS300. I believe the timing belt slipped and threw off the timing pretty badly. When I plug in the OBD2 reader the code that pops up is that the Camshaft is retarded. I can’t take it to a mechanic because I can’t afford a tow and I probably can’t afford to fix it. Is it worth trying to hold on to or do I just sell it. If I should sell it what is it even worth?