Resale Advice. How do you price your xbike converstion for resale?

You have a frame fork that most likely has little to resale value on its own, but then you eat ramen for while and put more than you should into the x-bike of your dreams. Some badass parts you’ve been saving over the years but also brand new top tier goodies. Except now you’re sick of ramen and have 6 other bikes you did this too, so you decide to sell it. Now nothing is brand new, even the new stuff you just built it with bc you shredded around town on it. How do you price it? Just add everything up and cut that in half? A third? Love to hear r/xbiking thoughts on this. Cheers