My 1973 Dodge Colt received unexpected inquiry

Hello, I'm from the Philippines. I have a 2 door 1973 Dodge Colt. Just today a couple of strangers approached me and asked if I'll willing to sell my car, they said it's for one of their son's use. Coincidentally, I was already considering selling it as I'm planning to take up masteral studies and was thinking of selling it to help cover tuition even if its just a little. Problem is, I don't really know its current market value and stuff like that. Any comment or help you could offer would be much appreciated. Thanks in advance.

hello, still didn't get any reply but thanks anyway, I sold it for 6000php or around a little over 100 USDollar.