buying parts to upgrade my m17x r1

[pinoy]

i have a list of things i need to buy in order to upgrade my m17x r1 to r2.

so far i plan to buy:

r2 motherboard

core i7 920xm

r2 audio board

r2 magnesium tray

heat sink for 920xm

anything else that i might need? i found this is it 'safe' to order parts from that website? most of it is outside of the US. i dont want to run in to any problems.

-

for the cpu, is there a significant difference between these 2 cpu?

Intel Core i7 920XM Q2C7 Extreme Edition ES CPU | eBay

SLBLW Intel Core i7 920XM 2 0GHz Laptop Processor Tested | eBay

the q2c7 is cheaper, so does it mean its not as good as the slblw one?

-

would the magnesium tray for the r2 fit on the r1 chassis? would the audio board fit as well?

--

thanks for reading.