Part 38: Ham-Hams Unite! Part IV

Sadly I couldn't dig up anything on that ID- I guess they just need to have that shopkeep be useful because...

Ham-Hams Unite! Part IV

...he was useful before! In Ham-Hams Unite there is a Sales Ham with a plot-important item, whom sets up shop in a high place. He's found when Hamtaro picks up a flyer he dropped on the ground level. Interestingly, both Boo Manor and that location (an elementary school) are the only two human buildings our heroes venture inside.