Along with all the welding, and photo processing, and forum creation, and photo book writing, something has been happening behind the scenes that really impacts upon the photo book side of things, and may need the forum creation skill to solve things.
Should I be unable to get FastSpring to reinstate the store, there’s a more hardcore “own the means of distribution” solution, which is to set up a web forum as a store. Instead of selling the eBooks as digital files, the forum sells single-purchase subscriptions to memberships which grant access to specific message threads, in which each book is uploaded, and to which each update can be uploaded.