A few options to keep things moving:

• Redo the board with SOIC footprint to use chips on hand
• Mount SOIC chip on a breakout board and run wires to main PCB
• Find the chip somewhere in TSSOP package
• Find another pin equivalent replacement part

All the big US catalog distributors were out of stock.  There were a few options on ebay but all international with long shipping estimates.  Octopart showed a few international distributors with parts in stock, again with long shipping times.  Octopart showed a few other US distributors with stock that I contacted.  Most had pretty high minimum order amounts, but I got lucky with South Electronics! 

They waived the minimum order amount, accepted paypal payment, and shipped same day.  Parts delivered in 3 days!