I have no time now, i have just purchased a 2017 RAM 1500 Quadcab HEMI 4x4. Maybe this weekend.
The i5 7600 runs at 4.1Ghz on load, and the i7 7700 runs 4.2Ghz. If you only play DCS, you don't need the hyper-threading (and the extra price) of the i7. DCS will not upgrade to multi processing before your pc will be obsolete (many years).
You don't need a Gtx1070 to run your resolution. Purchase what you need, you can purchase a bigger video card later if goes to higher resolution ().
Note: Many of the Gtx1060 6GB (and the Gtx1070) are the "mini" size and not mentioned in the system spec.
What do you think Bit?
https://www.newegg.com/Product/Product.aspx?Item=9SIABFS4F36812