The operating rules are really irrelevant. Consider the practical wisdom of restricting yourself to planning to not have reverse available. I understand completely what you're saying, and any time you have to justify something by saying "what can I get away with," you're in error.
Time to check yourself.
You may legally proceed and plan for the use of reverse. If you're wise, you'll plan for landing without it, and take any reduction in landing distance you actually achieve with reverse, as a bonus.