Just upgrade to 1080..
Hi
I have upgraded my i5 6600 (which is overclocked to 4.2 GHZ) but (currently)only running with 8 GB RAM , with an 1080 by replacing my 970. The (8GB upgrade will follow, but this because to be sure to not limit the game, although until now it was oddly sufficient - I did not face any restirctions like stuttering etc.)
I did a lot of tweaking, starting with Ultra VR settings and then customizing...
Result is: I would not play Elite anymore without my OCulus and my HOTAS X52, as the immersion is just great. I have played Elite for approx 290hrs, but only since having VR it feels like to sit in areal space ship...and get this different feeling of size of all the object in the game. But basically you have to try elite with VR to experience it, no description will ever be able to really catch the feeling to play elite with VR - I am hooked- even more than before.
to the above discussion 1070Ti or 1080- I have decided to take the 1080 because there is not much difference in price and in regard to power I see it more as sufficient.
Only hicks I have experienced (before twaking) was in some(oddly not all) space stations, not in RES, thus I have reduced the shadows and gloom(as I read in other threads about which settings take more power but do not have a real effect in VR glasses). since that no drops are present, but honstly I also do not see an change in game quality. What was setup was the SSMD =1,5for the rift (while for monitor it was reduced, because this is only for bystanders) to be able to better read text.
As the others said you can wait for next moths (only to wait for the announcement of NVIDIA makes sense) but else I am really glad I did not further wait for the VR.
I cannot state details now(as I am not at my computer)thus I hope I have stated my changes correctly.
In short: VR is worth to take a shot right now (only GPU announcement is interesting, on the other hand this will take time until new gpu will have reasonable price- same as was with the 1080..)
fly safe
redFred