ive used some sort of industrial spray glue before, i highly doubt elmers spray glue would do any good. but i really hate wheatpasting. if you need something to put it up with just use a roller they let you get it high up too. when i used to do posters i would have me stand on a lader and have my friend stand on the ground with a roller and an extension so we could get higher up, it worked out nicely until i realized how much work that was and almost got caught a bunch so i just decided to use spray glue.