What's it worth?

I thought I would ask some of you more experienced mopar heads so you could guide me right. I have my old 8 3/4 housing uncut, includes sb pattern axles, small drum brakes, just doesn't have the third member. It's not all painted up pretty but I drove with it in my 72 dart and it was fine. What's a reasonable asking price? I also have the original split bench front seat, it's black and for the 72 dart. It's in great shape with no visible tears, was wondering what to ask for that also? I tried researching this and it's all across the board, some want 100 bucks and others want 300. What's reasonable and fair these days? :book: