I have lots of PHR803T diodes , you can use HTDTENPERCENT to get another 10% off as well. this is the already harvested diode so all you'd have to do is put it in your module and hook it up.
There are TONS of group buys and sales for these diodes going on. But, of course, the reason that you don't want to go through a group buy is that you want the diode quickly. A group buy can take a couple of weeks.