Every A500 came with either WB1.2 or 1.3 (not counting the A500+ which came with WB2.0), so there was little to none sense for a SW-producer to add it into a compilation (specially since it would have costed).
You might find a basic boot-system on some games/apps, but thats all.
Getting new 1.x WB-Disks is pretty much impossible, so your only legal way is either flea-bay or Amiga-Forever, which would put you to the task to create an Amiga-WB-disk without an Amiga-WB-disk, something lots of users lost their last hair over :-o
