T1 Closure: Paying Online NOW, Appointment Early Jan.?

Would that work? I'd like to submit my electronic application today and take an appointment -- where I hand in my documents -- end of this month or first week of January.

Experts, do you think that could work?

I understand it could be fuzzy, but any thoughts will be appreciated.

Thank you.

PS: sorry for double post my original got buried

not possible

Possible, and perhaps already done successfully by the OP.