A possible solution?
"If the Picasso IV is intended for use in an A2000, the flicker fixer can actually be "snapped" from the card and joined to it by a ribbon cable. This is because the A2000 does not have an inline video slot, like other models"
Amiga-hardware.com
Lol, sounds like this may be more trouble than it's worth, though. Now I just need to track down a Viper 530...