Sedanman
67-9 Valiant specialist
It could also be the ignition switch. They do go bad and give the same symptoms. I would also look at the fusable link and check the connections at the bulk head
When mounting a coil horizontally, make sure the +&- terminals are horizontal as well(9&3 oclock). This will ensure that the oil is covering both terminals.
Also when you say no spark when hot, check power to coil, check ohms at the pickup coil. Is there no spark out of coil or just not to plugs?