Verify the following with Dave from redline, and always ask redline corp if you have a question. In the past racing oils lacked detergency, they would opt out of calcium and load up in zinc and moly. I do believe redline may have went to more of street racing oil and other manu's have as well, which means it does have CA. I also just posted this again verify with Dave buy I believe their racing oil has 880ppm moly and high performance is around 500ppm moly.
So I'm surprised more people haven't did similar to you, at least try one quart and see if it kills tick like an additive. If it is a noisy engine, I would bet going all the way 5w30 would be the way to go, but if it is a ticking engine a qrt or two might just stop the ticking. Noisy engines benefit from viscosity, ticking engines laugh at viscosity and require high EP additives, and by the way every bitog "oil" guy disagrees with that, but we at ram forum know better. The only reason to go to BITOG is to play name that gender game with pim weasel, if you want oil strategies good for hemi's you need to just stay here. Look at the hemi threads over there, ol. Pim weasel "just run oil in a box" and you will be fine. I think your strategy is good enough to try man.