Truth be told I have not done anything with those lined (aka ruled) paper text blocks (scroll down to see one bound in green silk bookcloth). I plan to practice some headbanding with them soon. So if you want one custom it's not too late. I'll try to post a pic of them - and dimensions of everything, in general.

I'm on to this other book which is in the press for another 12 hours or so. Probably longer. It's on the large side and I was happy it fit into the press. I think I had to fold it against the grain but it was a dented freebie text block (starting as a pad of graph paper) and I'm fine with the book not wanting to sit closed. I lucked out with the earlier book, the pad for that one happened to have a short grain.