Phone [Q] Help please.. stuck flashing LG E970

Please Help.. I am trying to flash the Rom on my LGOG and I messed up and did not save the rom on the SD card before running wipe. The phone is rooted bootl unlocked and the only thing at this time I can access is TWRP.. I saved slimkat ROM and Gapps on the sd manually after I ran the wipe. Now in TWRP I cannot see the rom.ZIP on the internal or the sd where it is located. What can I do? I see a download mode now on the screen of my phone but cannot access phone memory to transfer file from pc. I have no OS installed it says. Any help is much appreciated. Thank You.