I decided to help you all with some maths.
I dont know what 333.000 helix costs in USD It would be handy if somebody messages me in deepolis on [+NED+]-hdv111-.
Here we go!
Price of a full event sub (not pvp)
Without premium:
100 times elite turbine = 450.000 helix
110 times event canon = 600.000 helix
110 times event plating = 370.000 helix
elite sub itself = 99.000 helix
Total = 1.519.000 helix = 5 times 330.000 helix is in my country (in eur) 500 euro
after all you will have 131.000 helix left to buy ammunition.
Price of a full event sub (not pvp)
With premium (5% off the helix price)
100 times elite turbine = 427.500 helix
110 times event canon = 570.000 helix
110 times event plating = 351.500 helix
elite sub itself = 99.000 helix
Total = 1.448.000 helix = 5 times 330.000 helix (1.650.000) is in my country (in eur) 500 euro
after all you will have 202.000 helix left to buy ammunition.
Price of an full event sub(scone)(skonos)
Without premium:
100 times elite turbine = 450.000 helix
110 times event canon = 600.000 helix
110 times event plating = 555.000 helix
event sub itself = 180.000 helix (and 220.000 Battle points)
Total = 1.785.000 helix = 6 times 330.000 helix (1.980.000) is in my country (in eur) 600 euro
after all you will have 195.000 helix left to buy ammunition.
Price of an full event sub(scone)(skonos)
With premium:
100 times elite turbine = 427.500 helix
110 times event canon = 570.000 helix
110 times event plating = 527.300 helix
event sub itself = 172.000 helix (and 220.000 Battle points)
Total = 1.651.800 helix = 6 times 330.000 helix (1.980.000) is in my country (in eur) 600 euro (I think its easier to just buy 1.650.000 and earn 1.800 then buy another 330.000 unless you wanna buy ammunition too.)
after all you will have 328.200 helix left to buy ammunition.
So all the maths about event and elite now the maths for free players.
Specs of an elite sub with everything full of the best cell things.
Speed: 1.600
HP/SP (if you buy only plates (recommended) Hp 99.000 Sp 60.000
Elite sub specs with pvp
speed: 2000
HP/SP (if you buy only plates (recommended) Hp 193.600 Sp 60.000
So I hope it helped maybe will add some new later on.