I really apreciate all the comments droped here..

I guess i'll go with this setup:
 

CPU   i5 4670k @ 4.6Ghz

GPU   R9 270X Sapphire

HDD   1TB Seagate

CASE  NZXT Phantom 410 or NZXT Guardián 921

MOBO   GA-Z87MX-D3H

RAM   DDR3 8GB 1333Mhz Corsair

DVD-Rw ASUS

PSU   RS725-PCARD3-US

Cooler CPU   RR-212E-20PK-R1

 

The price should be $1,252USD at sale incluided my profit and FSX should run more than great, after the OC and tweaks.. 

The question is would you buy it? If not, please tell me why not..

Thanks for your support.. 

No , not before you change the 1333mhz crap mems.

If you put à cheap 2400mhz kit you have the same or higher fps at 4.2ghz.

The Haswell scale very well on high speed mems what you do here is overclock and downclock at the same time.