Dana 50 to 60 swap gear recommendations

Are there other EFI systems out there that have just one control unit for both the tranny and EFI that you are aware of?  

The Holley Terminator X Max controls both the EFI and a 4R70W transmission.  But that transmission won't bolt to a 460.  There may be others, and maybe one that does the E4OD that will bolt to a 460, but I'm not aware of any.

But I think you need to map your plan out before you start or you'll have a less than optimum system when you get done.  So if your rear gears are 3.55's you could consider a front axle with anything, as long as the hubs take your wheels, and have new gears put in to match your rear gearing.  And while you are at it have a front locker put in.

Or go with the 3.73's but, if I understand correctly, that means the later wheels will be needed, so you need to change out the rear axle as well.

Just come up with a plan, maybe bounce it off others to see if it works, and then stick to the plan.