I'm still making finished journals, I'll PM you with payment info Tom. Anyone who wants to order them in completed version or kit version can still PM me.
Regarding weathering, the pages are same paper as the prop I have, but pages maybe a bit white so I suggest flipping through them in dirty hands, soil or dip your hands in strong tea. Remember this book is used for maybe 6 to 10 years before sitting in a box for 7 more years, so maybe not as old as Grail diary.
A great way to yellow the pages is prolonged exposure to sunlight. Steam will also make the edges uneven.