[Q] Internal USB formatted on Mac - now unable to boot/mount etc

Hi

Can someone kindly help me here please. I'm fairly new to flashing custom ROMs and was eager to try out the Ultimate 4.1.2 Jelly Bean ROM I found here on XDA. I installed and setup the ROM no problem. However, was unable to format the Internal SD for Settings - Storage. I really wanted to start with a new, clean system so I (stupidly) connected the Note to my Mac via USB Mass Storage Mode, and formatted the Internal SD Card using Disk Utility.

Now I am unable to use the Note. However, I am able to boot into CWM 6xxxxxx. Under Mounts/StorageI have managed to mount the Internal SD, I can copy files onto it from my Mac and format using Disk Utility. But I am unable to get the device up and running again. As I get messages in CWM saying can't mount SD, and similar.

I do have some Nandroid backups on my Mac and copied these across to the SD Card using CWM Mounts and Storage. However, as I get the message can't mount SD card, I am unable to restore the system.

Please help someone. I love my Note and want her back.

Thank you in anticipation.