Nice suggestion - good way to combine the awareness exercises and your usual RCs for someone struggling to remember to do both. The other good thing is it slows down your reality check process so you'll be less tempted to "rush to get it done" and instead be more likely to really question if you're perhaps dreaming at this moment.

A suggestion by the way but since you're already combining reality checks and a cycle through the senses and your awareness of them, why not integrate them further and for example use a specific reality check for each sense, i.e. for example:
- Perform your sight awareness exercise, then perform a visual reality check (like counting the fingers on your hand, moving it out of sight, then bringing it back and counting them again - and noticing if your hand looks different, or turning a light off and on - or both),
- Next perform your auditory/hearing awareness exercise with eyes closed, then perform an auditory reality check (like speaking aloud and asking the dream/your subconscious a question, and seeing if there's a reply indicating that you're dreaming),
- Then when you get to the touch awareness exercise you can do the fingers through hand and closed nose breathing RCs for example.

That way you're already further associating the two processes, plus you're lengthening your usual reality check process which means that you'll be more likely to catch anything abnormal and realise that it's a dream.