What about this new Toy :
Nuclear Management Control Block :
Designs from URL (talonius app) and GregTech data orbs are needed for this block to work (or manually programmed ones).
It will run a quick simulation and test if the reactor is safe (using actual IC² code, to be sure it is safe).
After running the tests, it will try to copy the design using items of an adjacent inventory (This also applies to other reactors - that would allow us to make transfers between reactors)
While the reactor is running, it will refuel fuel cells and condensators, take out depleted cells and near melted components (95% heat).
If any of the components is missing (aka no more fuel cells or components to match the design) it will stop the reactor.