Heck, spray’er out with a little WD-40, slap the valve cover back on, fill’er up with some new oil and off you go :)
When i was young i worked at a farm, and the frugal (understatement) owner's idea of an oil change was to "let the oil run low, and then full it up." And i am sure the oil was a cheap grade, and the filters rarely got changed. He got by on this as the trucks were old and used a good amount of oil.
However, one of those old truck engines got rebuilt so well that it hardly ever needed any oil, about half a quart a year as i recall, traveling about 30 miles a day making deliveries in the city and back. I knew as it was my job to check it as a helper on the route. But after about a year and a half or so the truck was idling in the lot before making deliveries, and it started to make squeaking noises, which stopped in a few seconds, as the engine was frozen.
The mechanic said that when he pulled the plug on the pan that nothing came out, as it was all sludge. Had it been a good grade of oil it could have lasted much longer.
Then again my own dad had an old Ford station wagon in the late 60's, with a 390 engine which used 2 qts of oil a day (40 miles) but ran like a top (though it was missing second gear). So he bought a barrel of oil for .10 a quart (back then) and every day after he came come from work i did my job as a kid to put the 2 qts in, which was slow in the winter!
Or do the old trick of adding a quart of transmission fluid to the crank case, run it for a few miles before changing the sludge.