Hello Peter
I know you have posted a lot of times, so I am forgetting what you have found, I know some of the things you are still looking for, so with the following you may have already know:
On A manxnotebook (Frances) if you search for "Transportees" some information is there, Sarah is listed as Mary.
I know you have added information to Convict information online, but have you ever checked the Convict Records at the NSW State Archives ?
Cheers
David