I just yesterday created a blueprint of a self-contained fusion power plant. I’ll upload it later if you want. It need an external engine block to charge the jump-starter but, it uses the red and green pipe wires for Idle Mode and startup (i.e. open up the jump-starter and put the tokamak into idle mode to heat it fully) respectively. It also has a monitor on the water pipes (water supply and pumps and that are all included in the plant) so that if the water level is low, it puts the tokamak into Idle Mode to conserve fuel.
Hopefully I should be able to put some custom triggers/actions in 0.2.0, then we can have fully automated fusion plants.