Theroy crafting a Kinetic blast ele trapper

so yeah the title says it i wanted to do something new and exciting so i came up with a elemental kinetic blast trapper but i need some thoughts on my build

I would be running 2 kinetic blasts (one of them in deerstalkers) each linked to trap multitrap gmp and if i get a 5 or even a 6 link i would add weapon ele dmg and at last proj dmg/added fire

i intend to run clarity HoA and wrath (since i got the nice extra lightning dmg nodes anyway)

build is here:
http://www.pathofexile.com/passive-skill-tree/AAAAAgYAm40ILu2DGY4AXtN-73oknX117g5iWv66Vvr8xWOnFHV312eg3Uakwn8rh3YRgTB81oqQDeOfUUeNfTN4Sn2NvyP25zoFtfrrTZIb4MLs1CPo1pLztMUwcSLqmybN6l5FYqzb592om7UyAZ2qbIxwUUt42eAZirIZNj12bzpCTpv7Cc96bWzjhH6w9tph67VIDkjYVBqPelMGIx7wEZYfQbd1Bx6TlX_GAx6VLq0zwcUWv_DVGdf67-wYiEImlUlRV4dwu4IeYeKArtkTFLDbC1VLogQvb5phjDbCc-UZc3C0OJ-I-_X255eXRXw=

problems im lookting at

i want to autamate curse on hit
i dont know how the damage would be since i didnt try it out

cons i see in this build are:

Relatively cheap since the only uniques one needs are deerstalkers for that nice 5 link and also you dont need a sick weapon since all one needs is phys dmg and elemental damage with weapons no attack speed no added phys dmg (wich would be nice tho)

Relatively fast gameplay

pls share your thoughts with me