Hp envy j067cl ssd installation with clean OS

Hello everyone,

yesterday i bought a brand new HP envy touchsmart j067cl that came with pre-installed windows 8 64bit.My specs are:

1. i7 4700qm cpu
2. 8gb ram ddr3 1600Mhz
3. 750HDD
4. Intel HD 4600 GPU

My first priority is speed , that's why i bought this model so i want to install a new ssd to improve performance.I bought an ADATA Premier Pro SP900 120Gb SSD Sata3.I have not touched my HDD.I want to ask 2 thing i cannot figure out.

1)I want to install my ssd and perform a clean installation of windows 8 and then update to 8.1 via the store free update.Where will i find a Geniue/compatile windows 8 iso file to PERFORM the cleam installation on my ssd?I was informed that windows recovery disk/flash drive does not work because with this upgrade (SSD) the capacity of my hard drive changes and the proceess gives an error (750GB are bigger than 120 of my ssd).So please explain to me.There must be a way.What if my HDD breaks down and i need  new one??Same scenario.
P.S.: i also accept cloning methods if they are 100% working so that i can migratemy HDD to my SSD.

2)I need to have drivers for Windows 7 Ultimate 64bit i own already , in case i want to downgrade.Where will i find?On HP's website are not available.I saw on other posts here that we can ask and HP provide us here links woth all the required drivres.So please help me. 

Thanks in advance for your time and help.
Xaris