Old RC Cars

[mummy2four]

Not sure if this is the are to post. Just wanted to know how much these are worth and if they are worth selling now:

Radio Control Racer Lamborghini LP500s, Model no: a-101. This mint and in its box.

Radio Racer Radio Controlled Porsche 935 turbo 78. This is mint and it its box

Radio Racer Radio Controlled custom Van. This is mint and in its box.

These are my hubbys old toys. They all work as we have tested them and was just wondering how much they are worth etc, as they are just stored in our attic and its shame.

Thanks