1

If everything goes exactly according to plan (by no means guaranteed in Bolivia), you might just manage to get in, do the Salar, and get out in a week, but even on the most optimistic schedule you'll see nothing else at all. I'd rethink if I were you.

Another question about scheduling a short trip came up recently here, which you might find useful.

2

Ditto #1. Rethink !
Best you can remotely hope for is :-

Fly Santa Cruz to Sucre.
Bus to Potosi and pick up a 2 day tour of the Salar that drops you in Uyuni (or far better - in Oruro.)
Bus to Cochabamba from your drop-off point.
Bus or fly to Santa Cruz.

Remember, the rains should be here at the same time you are - traveling may be difficult.

Is it really worth the effort and expense ? Hardly.

Far better option is to forget the Salar this time, and just book yourself a 4/5 day tour out of Santa Cruz. Plenty to see and do once you´re outside the city.

Good luck, whatever you decide. Enjoy your visit.

3

Like the others have said you are taking a hell of a risk trying to squeeze that in depending on what you have to do after your seven days are up! Travel isn't that fast in the country even if you can afford to fly. You are leaving yourself open to all kinds of hold ups. We left ourselves 4 whole days in Santa Cruz to get ourselves on a bus out to Buenos Aires to catch our flight back to the UK. I really wouldn't have wanted to be relying on multiple buses turning up where and when they where meant to be because it doesn't always happen. At the same time you will have an amazing time there whatever you chose to do. Its a beautiful country and is top of my list of places I want to go back to.

4

Thank you for advice, in that case looks like I'll skip that trip and hang out around rio extra week :) and visit Bolivia next time.