how to find a quality ecu

[Ex3n]

I have pulled the ecu from my 96 5speed mt tracker. There is at least one swollen capacitor and so i would like to replace the computer. I am struggling to find a refurb unit. RockAuto is out of stock on the item. I am hoping somebody might have an idea of where i can look. I want to make sure and not get a crappy part but don't have enough expertise with these cars. 

Thanks in advance for the help.