Sorry, I don't have a photo but I just installed an inline filter on my bike. It's a low grade one, not much of a filter but more of a screen. However I saw the screen catch some chunks the first time I turned on the petcock (there was a bit of varnish in the tank/petcock). So it's working
I routed it so that the bulk of the filter is in between two of the carbs. Be careful when purchasing them, they are often WAY too big and the photos don't give scale. To be safe you could buy them from a motorcycle retailer like 4into1.