I thought about that possibility, because R2160 includes this provision, which seems to prevent any deputisation where other rules of any power prohibit the same action from the officeholder: 2. it would be POSSIBLE for the deputy to perform the action, other than by deputisation, if e held the office; That is why I included the second portion from R103, which sets the limitations on R2472. For this reason, I think it really comes down to two questions: (1) how the second list item in R2160 is interpreted with regards to lower-powered restrictions, and (2) how the exception to R2160 in R103 is interpreted with regards to your message.
---- Publius Scribonius Scholasticus