AMD config is good go with it.
I think its better to purchase from sp road bangalore,trust me you can definitely save 1-1.5K compared to prices at Mysore.Check this Golchha Computers Build your PC - Golchha Computers also you can check at Aashirwad computers sp road Blore.
Just mail your config to them requesting the price quotation and compare it with what your dealer gives you.
git@golchhait.com,
aashirwadcomp@gmail.com
If you still want to buy at Mysore...you can consider MEGATRONICS near Prabha Talkies, Rahul Computers in KT street.(believe me they give lesser prices in Mysore).Bargain well at these shops comparing the product by product prices at SP road and I am sure you will get almost same prices as Blore.
NZXT cabinets are not available at Mysore imho so have Coolermaster alternative to NZXT Gamma.