Phone Looking for the original ROM for my phone

Hi all,

I have Samsung Galaxy Note 3 LTE version (UK on 3 network) and I am looking to find the original ROM to flash back onto my device as I am no longer happy with the custom ROM I put on it.

I have currently got the X-Note_Aroma_Build_5.1_MJ7_Public ROM and there are various aspects of it that I am not happy with, and I am not clever enough to tweak them.

So yeah, I am looking to put the original ROM back on? Could anyone please point me in the right direction possibly? (I didn't keep the original files etc using recovery mod because they just took up way too much space on my device *insert "d'oh"*

If you require any further information, please give me a shout.

Kind regards

Vimes