Again, we first have to know what the TS needs.
Maybe 1.0V is good enough ( because of his limmited knowlegde I do not think he want up to 1 uV precsion ;-) so probably your suggestion will be a usefull one)
The ADR510 is 1.000V plus/min 3.5 mV and if he is a beginner the sot23-3 can be a problem.