SIT chief executive Penny Simmonds submitted the proposal on Friday and, despite unanticipated delays in progress, she said she remained hopeful of a positive outcome.
"The costings we've put together are realistic, and include all aspects of a potential takeover [of Telford]. Nothing we've discovered during the recent process has changed our position with regard to the situation and our intentions.''
Quizzed on possible time scales for the takeover, Simmonds said it was now a decision "for the ministry''.
A spokesman for Education Minister Chris Hipkins said Hipkins would be "looking for a solution as quickly as possible'', and was seeking advice from the Tertiary Education Council after receiving the SIT proposal on Friday night.
Mark Patterson said that was in line with expectations, and "everything'' continued to be done to expedite the process of returning Telford to business this academic year.
"Although there's more complexity to the takeover than originally met the eye, particularly to the full costs of opening the gates once again, I remain positive.''
The ministry would need to give the proposal "full and proper consideration'' before making any announcement.
That was unlikely to occur this week, Patterson said, meaning Telford's original February 4 term commencement date was likely to be deferred.
"We were always looking at a deferred start date, and that's something I believe staff and students were also fully aware of.
"I appreciate the uncertainty that leaves for people, and hope we can all just hang on for another week or so to make this work.''
Clutha Mayor Bryan Cadogan also urged patience.
"This needs to be a viable proposal that stands up long-term. If it takes a little more time to make it right for the long-term, we just need to keep treading water and keep our heads up in the meantime.''