How to get Eleaf iStick Pico 25 with ELLO Atomizer Starter Kit with best price

Both Eleaf iStick Pico 25 box mod and ELLO Atomizer are new products by Eleaf, about there features, you can visit http://www.istick.org/istick-pico-25-with-ello-starter-kit-85w-top-filling-2ml-upgradeable-firmware-kit.html, I don't list it again, in a word, they are worth having.
If you want to purchase them, I suggest you don't purchase the kit directly. I suggest you purchase the separate mod and the atomzier. there are two resons for you.
First, by the price. the price of the kit is $42.9, but the price for mod is $19.9 and the atomizer is $18.9, just only need $38.8, it is cheaper than kit.
Second, by the device in the package.

The iStick Pico 25 With ELLO Kit comes with:
1 x iStick Pico 25 Battery
1 x ELLO 2ml Atomizer (with 1 pc HW1 Single-cylinder 0.2ohm head)
1 x extra HW2 Dual-Cylinder 0.3ohm head
1 x B Type mouthpiece
1 x ELLO 4ml glass tube
1 x Air Pipe
1 x set sealing ring
1 x QC USB cable
1 x Warnning Card
But the mod iStick Pico 25 package comes with:
1 x iStick Pico 25
1 x QC USB Cable
1 x Warning Card
And the Atomizer ELLO Package comes with:
1 x ELLO atomizer -2ml (with 1 pc HW1 Single-cylinder 0.2ohm head)
1 x HW2 dual-cylinder 0.3ohm head
1 x HW3 triple-cylinder 0.2ohm head
1 x ELLO 4ml Glass Tube
1 x Air Pipe
1 x B type mouthpiece
1 x set sealing rings
1 x warning Card
The kit miss one part that is HW3 head, so  I suggest you purchase them  separately.