Running interstate 75 as a sub board

Hi, I am curious about the feasibility of running an interstate 75 board as a slave device using a raspberry pi 4 to send the images/frames to display on the panel via i2c.
I have some hub75 panels that are unfortunately not chainable and I would love the ability to use them both in a costume I am designing.
The only other thing I can think of is to try and figure out how to bodge the panels together though I doubt that’s feasible.