A low-risk proposition for you: check out Emperor's Choice
for lunch, at $7.95-10.95. My recommendation would be the beef with orange peel, the hot and sour soup, and the fried rice. While you're there (they're often slow mid-day), have some straight talk with the owner, who watches television at the bar, often over a plate of greens and some soup, and ask him about which nights / chefs can really rock the few Szechuan items for you.
There aren't many foodies or Chinese patrons in there, I'll grant, but these guys know and have survived in Chinatown for a long time, and their premium prices reflect some really good ingredients and technique (for Cantonese, American-Chinese, all the disclaimers) in my experiences over the years. I was just there last week after a pause, and regretted not being back sooner. Hot and sour soup was gelatinous and flavorful, eggplant was full of toasty peanut flavor, and their fried rice with the cabbage and really dark soy is something comforting. If it's not the style of Cantonese you're after, you'll only be out a Hamilton (which is still double the tab you could admittedly score at Spring World, RIP).
Hoping this thread gets some views, I'd also love updated recs on other places in Chinatown with a good set lunch / pick A-B menu. Too many of the Tony spots are hard to solo these days.