I noticed the waterpump pliers with the pin wrench, too. I wonder if they were designed for a specific application? And some parrothead pliers, in case you encounter a broken parrot or Jimmy Buffett fan.
But, now that you've got, by my count, three valve lifters for flathead engines, you need to buy an old flathead truck. Ford V-8? Studebaker (get an M-series truck, if you decide on that)? Mack?