Sorry I think your SOL on getting a custom cam made and shipped to you in just a few days.
You were using the .590 cam, so your running a different pulling class now that requires a max lift of .495
I dont know of any off the shelf cams that will do what you are looking for.
But if you had more time [And you Had it!] since you been working on this for a month or so.
You could of ordered yourself a custom cam.
From your experience you probably know pretty much what you need.
If it were me I would guess that you need a custom cam with a .3093 lobe lift when using a 1.6 rocker and around a 275* duration with and 108 to 110 LS
mike