How would I even begin trying to sell these?

As a kid I loved Zoids. As evidenced by my plastic bin here, I collected a decent amount of model kits with my limited allowance. Unfortunately I am now an adult, and my storage space is limited so my dusty old collection needs to find a good home.

Pretty much all the models are in pieces and I no longer remember what fits with who. So I can’t sell complete sets. Would it better to try and sell off the whole bin in one go, or put together as much as I can and sell them one by one? What’s the best way to see if any individual model is worth decent money?

I’m open to any suggestions.