Inexpensive Sink Advice

I am looking for five sinks to go in an apartment job I am doing. I bid the job thinking that I could simply use some cheap stainless sinks from HD, but it turns out that the cabinets are only 22 inches deep. After I subtract the 3/4 inch front and (http://maplered.com) back rails holding the cabinet together, I am left with 20 1/2 inches.
Given budget constraints, I probably looking for something 22 or 20 gauge. Because we all know that clients visit this forum as well, feel free to PrivateMessage me with prices.
The only other option that I can think of is to cantilever the Stone (http://g603.net) over the front. I will definitely rod the front lip, but does anyone think that I will have to run rods perpendicular to the cabinets out over the edge?
Anyway, thanks in advance for any tips. I hope to meet some of you guys at the StoneExpo in Vegas. Maybe we should start a thread with a list of expected attendees.
Matt