Take note about the weight:
" What is the cost?
We will pick up your resupply bucket at the Lakeshore (Huntington Lake) post office and deliver it to the Muir Trail Ranch and hold it for you for $50 per bucket.
***It should weigh at most 25 pounds (11.3 kg).***
For additional weight, we charge $2.00 per pound ($4.40 per kg). For options other than mailing the bucket to us, contact us by email for rates."
This is from the MTR website: