The removed tub is worth money, but as always, it depends on condition. I got $250 for my VGC extra cab tub, when I removed it for a tray. If you have tray liner/sports bar/hardlid etc, then add $$$'s for those.
The more money you ask, the longer it will sit around.
The Hilux I looked at today is 2015 compliance. It has a good condition extra cab tub and lights, and a genuine Toyota tub liner; they should be worth something.
I just changed from a tub to tray on my SR5 I ended up smashing the tub up and taking it to the tip. It will depend on where you live also if anyway buys it I am in Darwin , I had my SR5 tub with tailgate up for sale for $100 not one enquiry.
I still have the taillights ,roll bar and rear step for sale.