Question debloated stock rom gti-9505

Hi im after a debloated stock rom gti-9505 to suit an Australian gs4.

what are my best options as ive looked at a few and seen stuff like knox etc that i have no idea as im only new to rooted mobiles etc.

basically wanting a clean cut rom with no junk but standard preferably android 4.3 i dont mind if its got stuff like secphone etc loaded in it.

any advice appreciated, thanks Jamie