Don't shoot a Titan, so maybe this isn't applicable, but I set up a w&w black wolf this year. I wanted an ilf setup that maintained as much simplicity and lack of things to fail as I could get.
What I ended up doing was gluing a piece of hardwood dowel, I'm guessing 3/16ths diameter under a Velcro shelf rest.
For the side plate I made an adjustable side plate, (which is basically just a fancy bolt with a larger head), that screws into the plunger hole. Add a set screw to the back side to lock it in place when tuned.
I machined mine, but I'm sure if you dug around a hardware store you'd find something that would work similarly.