If they will fit, I ended up with the Kyosho 74mm Blue's. They're the stiffest they offer for 16mm shocks. I believe they are on par with the HB Orange springs, so either would work. I also ended up going to 47.5wt in the rear and 55wt in the front. The truck hasn't been run yet, but I can drop it from about 4FT without it bottoming out or rebounding too quickly.
I found my Shock Set-Up now. I chose 8 Team C T8 Rear Shocks and limit them in both ways around 5mm. I use red hard Team C Springs and 50 WT Losi Shock Oil. It works very well.