@aash - I might suggest that VMX would be a better option for this, as MX and EX9200 are very similar products. Juniper does not have VEX SW, but VMX might be easier to use as this is a released product, with documentation and such, while VQFX is still non-productized. You can get VMC 60-day trial at:
https://www.juniper.net/us/en/dm/free-vmx-trial/
Good luck.