For Kanto, get to the dock of S.S Anne at Vermilion City and talk to the sailor at the first row. For Hoenn, talk to a lady next to the right of the other at Slateport Harbor at the Slateport City.
Love your idea. But just wondering, which time zone are you currently at? Beause some may differ to yours. It may be 1 day earlier or later than yours. :p