We spent our day a little differently. We made some time for the market and stair street, but also explored the old residential parts of Jiufen in a drizzling gray rain (head left at the end of the market street and then keep going, making an eventual righthand swing around the side of the mountain to where the Jiufen residents live), went up to a Japanese shrine above Jinguashi and walked around to the other side of Keelung Mountain for some gorgeous ocean views.
To get to the viewing platforms you have to take the bus from Ruifang to the very end of the line past Jinguashi. If the driver is nice he'll take you a bit farther so you won't have to walk uphill.
For the Japanese shrine, the entrance is not far from the Gold Museum and requires walking up a lot of steps with no shade.
I wish I still had my photos of Jiufen, but due to a recent computer crash, they're gone. I do, however, have these:
Isao on the overlook along the far side of Keelung Mountain (Jinguashi)
Sasha at the entrance to the Japanese shrine (between Jinguashi and Jiufen - closer to Jinguashi)