mobile

Hello. I'm new to roms and flashing. I have an SM-T700 tablet. A while back, I wanted to root, so I went online and got Odin and the rooted stock rom and flashed it. All is well. Then I decided to get the Blisspop ROM. I read the directions wrong. I got TWRP and forgot to get the ROM downloaded. I never made a backup, which I now realize was idiotic to the power of a trillion. I erased EVERYTHING. I then clicked 'reboot' and:
A) Lost TWRP
B) Have no OS
C) Am stuck with the boot screen or the default recovery screen
How/where can I get the stock jelly bean 4.4.3 os for my tablet so I can go on, get TWRP recovery, download the Blisspop rom, and do this right?