Why are you posting in a 6-month old thread? You should have posted this in the HOT-ROX Extreme thread, instead of this one which isn't even about your question anyway.
I will give you an answer, however. Stacking HRX and Methoxy-7 are easy- take them together. Flameout is not an issue with stacking. Just take it in the evening sometime.
As for the timing of HRX and Methoxy-7. Take them immediately upon waking. Yes it says on an empty stomach, but unless you wake up and have your breakfast sitting next to your alarm clock the timing shouldn't be an issue. Just take them and then eat maybe 15-30 minutes later, or less even, just not immediately.
As for the second dose- take them 6-8 hours later as the instructions indicate sometime in-between meals so your stomach isn't "full". It you waited to take the second dose until your stomach was actually empty you'd have to wait a long time.
None of the above should be changed regardless of what diet you are on.