I have a co-worker making primer catchers for the RCBS rockchucker supreme press (RCIV). It will work with or without the inline fabrication case ejector. Price is $25.00 shipped and includes hardware, 24" of 1/2 tubing and a primer deflector for the piston. Colors available are black and green. We've done them before in multiple colors but just takes to long to setup the machine when changing colors. PM me for payment details.
I bought one and have used it now for about 1200 rounds. It maybe missed two primers since my initial review. Works wonderfully and is worth the money to not be walking all over spent primers.