No crank, no start, no lights on dash?

I was having difficulty with starts in my truck listed above Diesel IDI, and realized my batteries were well past due for replacement. I got new batteries and once I did, everything started up like a champ! However, a few hours later, I started it up, no problem, and a few minutes later, it died. I tried to restart but got no crank. Then I realized that I had no lights on the dash.

Assuming this was an ignition switch issue, as that is a weak spot on these trucks, I replaced it. But still, to no avail, no crank, no start, no dash lights. But I do have head, brake and dome lights. I have also tested all fuses, with a continuity check and all tested ok. Upon researching the starter circuit, I found that my starter solenoid could be bypassed to turn the motor, but no voltage coming from the ignition. And when providing 12v to solenoid, turned over just fine, only no start.

My main concern at this point is no dash lights. With the assumption that the new switch is good, I confirmed that the placement of the switch allowed full key rotation and placement (i.e., acc, lock, on, start) but still no dash lights or crank.

My next validation would be the Clutch Safety switch (Manual Transmission) but would that be for not if there are still no dash lights with ignition in on position?

I'm stumped and look forward to any or next troubleshooting steps.

Thanks!