I buy blotter books and take the books apart! I am lucky enough to have a 11x14 Midge-O dryer which uses stacks of blotters and corrugated cardboard. Forced air through the stacks gets the prints dry, remember to cut the cardboard so the tubes permit air to flow. My prints are well washed before drying and are still fixer free after drying-thank you very much! One other thing, moisture and salts, such as fixer or the sulfite's in the corrugated cardboard would move from wetter conditions print into the dryer blotters. I have also built 16x20 "stacks on the counter, weighted down with a laminate covered piece of particle board and air dried with a fan. In either case, the prints dry overnight and are board flat when dry. (The late, great Salthill dryer was a modern take on the Midge-O and the old Burke and James blotter dryers.)
Is it truly archival? Probably not. Is it commercially correctly processed? Yup.
p.s. David Vestal used blotters to dry his prints, lots and lots and lots of blotters. If it was good enough for him...