How much approximately would that cost?
well depending on used or new, i'll give a rough price used
mask - grillz (55) dye i4 (60-70) events (30-40)
tank - steelie (25) 68/45 ( no idea would say around 80-100+)
hopper - halo (30-40) rotor (75-85)
marker - etek 3 LT (180-200) mini - (seen some go for 120 seen some for 160)
podpack - any will do ( around 20-30 )
prices aren't set in stone, you may find a bargain or not