Here's what I would say for pricing...if I were to make it all from scratch.
-Cover leather...20 bucks
-paper...for 500 page book...20 bucks
-printing it all in b&w 20 bucks...
-20 color prints...20 bucks
-gold leaf....lol very expensive...???
-metal die stamp for lettering....???
-glue,thread,needles,presses,clamps...binding shop tools...???
-resin molded corner details and center snake charm...40 bucks...fully painted and stained to look old...
So far 120.oo just for materials and construction and about 5 days per book in drying time and manufacturing time. Tops...2 books a week...maybe more pending on the size of the run.
Don't think blank pages makes much of a diff...printing time is nothing....blank or not...it's all gotta be sewn together...
If I were to hand bind this book, with everything given to me....so nothing had to be boughten from my own pocket...I'd charge 150.00 just for labor...And that's cheap...I am sorry...but it's the best I could do...I'm not a corporate entity with 69 limbs to do 5'000 things at once....wish I was though....
Lemme think about this a lil more...maybe it's not that bad, but it's a hard book to pull off...