Shelves to display materials, marked for easy return of all supplies. Dictionary so adults can look up the correct spelling. Roster of children's family names with correct spelling. A portable tray or box, e.g. kitty litter tray, to place stories in that are to be read to the class. A scribe can be anyone, an adult or a fourth or fifth grader, who will sit with the child to write down the child's story word by word.
Parents make great scribes.
Say each word aloud as you write it. This will slow the child's oral rate down to your beautiful-printing rate. Write exactly what the child says. No editing or corrections. Changes a scribe makes spoil the sense of creative ownership you wish to foster.