Mr Bradford said the as- yet unnamed party would reach double figures in the Dáil showdown, which must be held before Spring 2016.
“Any promise we make will be fully costed and any promise we make will be fully kept — that is a significance difference with our party,” Mr Bradford told Newstalk.
“What will political reform mean? It will mean a complete overhaul of how the Dáil works; it will mean that every single TD will not be somebody pressing a voting button at the end of a debate. He or she will have a real chance of making an input. I think we will have to look significantly and change our electoral system.”
The prediction came as Ms Creighton said she was in favour of water charges, but wanted to abolish the Universal Social Charge.
The former European minister of state said her embryonic organisation already had 16 candidates in place for the general election, and was confident of fielding standard- bearers in every constituency in the country.
Ms Creighton says she will use the next eight weeks to host a series of public meetings intended to define the party’s policies, based on a set of four free-market convictions.
The Independent TD hopes to raise around €1m in funding for the party, which she claims will transform Irish politics.
Ms Creighton says she is not interested in propping up a Fine Gael or Fianna Fáil-led coalition, but will only enter government if the thrust of the unnamed party’s policies are to be implemented,
Financial pundit Eddie Hobbs, a co-founder of the party, is still refusing to say if he will stand for the Dáil at the next election.
Ms Creighton, who was expelled from Fine Gael for voting against the Protection of Life During Pregnancy Bill in 2013, says the new political organisation, operating under the banner RebootIreland, will be formally launched by the end of February.
The Dublin South East TD ruled out any future accommodation with Sinn Féin or left-wing independents.