I'm about to go out and patch it with Permatex Form-a-Gasket #1, for the short term...
ALLL-righty then, that went smoother than I expected, and the predicted 4PM rain held off too... put on the gloves (and safety gogs) and got under there, BRAKE CLEANER in hand, noticed a bit of coolant weep even though truck hasn't run for 2 days... my spot is only shady in the morning, figured it built up a bit of pressure from sitting in the sun, so popped the rad-cap and sure enough, a small spurt, but not enough to push the plunger and go to the overflow reservoir... got back under, hosed it down REAL good with (Greta Thunberg-approved NON-chlorinated

) brake cleaner, until I was looking at nekkid cast iron, and I guess aluminum for the Timing Cover...?
Anyhoo, put a nice bead of the reddish-brown goo way past the dye stain in each direction, tried pushing it into the junction... and now I just wait. Starting a new job tomorrow, gotta roll at 7:30AM, but it's only 3.4 miles away, could probably make it with zero coolant... KIDDING! Leak is not THAT bad, and if this even slows it down it'll be win. Dollar Tree helping out with Prestone 50/50 for only $5/gallon! Took me 7 months to go through the previous gallon, new larger leak probably 1-2 months, depending on miles. (But it's embarrassing visiting friends, and having to borrow the garden hose on your way out, lol...)