Question: Overland track visit by inexperienced bushwalkers

Hi,
As part of a school project, me and my daughter (16yrs old) wanted to reach Mount Ossa and take a three day walk over the overland track. I have a few questions for the more experienced members:
1. Is a three day walk possible to cover Arm River Car Park to Pelion Hut (day 1). Pelion Hut to Mount Ossa and back (day 2). Pelion Hut back to Arm River car park (day 3).
2. What preparation is needed for inexperienced walkers?
3. What weather can be expected over March or April?
4. Any other suggestions or tips?
Thanks
As part of a school project, me and my daughter (16yrs old) wanted to reach Mount Ossa and take a three day walk over the overland track. I have a few questions for the more experienced members:
1. Is a three day walk possible to cover Arm River Car Park to Pelion Hut (day 1). Pelion Hut to Mount Ossa and back (day 2). Pelion Hut back to Arm River car park (day 3).
2. What preparation is needed for inexperienced walkers?
3. What weather can be expected over March or April?
4. Any other suggestions or tips?
Thanks