Here's a link with some ideas of the tote stands . . . .
https://www.google.com/search?q=bulk+bag+stand&biw=1093&bih=495&tbm=isch&imgil=wROEJRU8DBtdEM%253A%253BruCBvEnYC_psfM%253Bhttp%25253A%25252F%25252Fwww.formpakinc.com%25252Fbulk-bag-equipment%25252Fbulk-bag-filling%25252Fbagpak-bbf-1000-dt&source=iu&pf=m&fir=wROEJRU8DBtdEM%253A%252CruCBvEnYC_psfM%252C_&usg=__31nKKkiFTWjisl-uZJh_0XkY7ag%3D