3:54 vs 4:10 with a low deck 499

My guess is.... It will be no quicker at the track with the 4.10s, and a lot less comfy on the street. I would absolutely use the 3.54s, and the dana is a good idea.
Edit: quote" I'm trying to keep the rpms down while cruising too" Dr Diff now has 3.23 gears for a dana (new!). I think your engine would pull those too, and they are an excellent compromise gear (as is a 3.54.).