According to the calculator, tendering Chris Jones and Dan Bailey and restructuring Romo, Carr, Witten, Lee, Scandrick, and Bernadeau leaves the team with about $846,090 in cap room. If you want a realistic approach to what this team will do to get under the cap, start there. They will likely spend a while trying to force Ware to take a pay cut under the threat of cutting him outright if he won't (which would save about $7.4 million altogether -- for those of you complaining about the "dead money" for him to play for someone else, that's what restructuring every year gets you. It's going to happen sooner or later with every single one of these players. Get used to it.).
Any other cap savings will have to come from cutting players, unless the team has another contract in mind to restructure, but I think there's entirely too much future dead money involved with the ones I named earlier. Maybe Orton? I couldn't imagine them cutting the only other QB on the roster outright, but man, that's a high cap figure for a backup. They might try to get creative there. Parnell and Costa are backups who offer significant savings if cut and could probably be replaced pretty easily by mid-round draft choices.
Austin will surely be a June 1st cut, but that's probably only to shore up money to pay for the rookie draft class. It does nothing for the team until then. Maybe Free becomes a June 1st cut if the team finds a cheap, young RT it likes, in which case Parnell probably stays for competition (except what the heck has Darrion Weems been doing on the active roster all year? Does he push Parnell off the team regardless?). Orton could be a potential June 1st cut if they find a cheaper backup they like, or if they decide to roll with a rookie like the rest of the league seems perfectly capable of doing.