Tab s 10.5 t805 with exynos cpu.Need help. topic

So I just bought a tab s 10.5 t805 with lte.But to my surprise when I checked its cpu with cpuZ..It had a exynos 5 octa,not the snapdragon one and that has got me really worried...So I wanna ask that which ROMs i can flash on it?The t805(snapdragon) ones or the t800(exynos) ones...As a guy over internet told me that installing t805 roms will brick my tab since they are meant for the tabs with snapdragon.Are there any stock ROMs for this device at samfirmware?...Plz help me.thank u