Well, I'm sorry leagris, but I am far from having your problem yet (too much energy to transport =/ ), so I cannot help.
I didn' understood why the lapotronic clusters are a problem for you, though;
If you have this much energy, what stops you from crafting them?
If you are not in "very late game" yet, I'm afraid of who is...
And sorry @Aka, I can't help you too, only SP here...