Do you want to move the fruit from primary to secondary, or remove it entirely? If the latter, why not just rack? If the former, rack, then scoop it out with a slotted spoon or something.
I had a spiggot in my fermentation bucket, so I just opened it and the berries and yeast cake stayed at the bottom. But... with that much berries... don't think it'd work
You could try googleing "Syphon Screen" I got a lot of junk links, but some of the links were to home brew store websites that sell a screen that fits over your syphon end.
It looks like it is just a stainless steel screen bent to fit over a tube. look like it should be a 3 or 4 inches long, probably to keep it in place.