Frank, the weight of the car pushes down on the front axle and tries to twist it forward at the bottom. This puts more tension on the ball end of the wishbone, making it want to go down so the axle can rotate out at the bottom. If you put your jack stands under the front frame (instead of the axle), this takes weight off the front axle and keeps the ball end of the wishbone from popping down with force when the bolts are removed.
As mentioned above, buy a new rubber ball to go over the wishbone steel ball when you reassemble. A little dish detergent on the rubber will help it slip on--it's a pretty tight fit.
You might have to use a small jack to help lift the wishbone ball back up into its socket when you get ready to reassemble the cap and bolts.
Since you're partway there, I think you have a good plan to clean out the oil pan. Since the B usually didn't have an oil filter, a lot of crud settles down there.
Finally, to everyone reading this thread: Time to take a chill pill. Emails, texts, and forums are TERRIBLE ways to communicate in that it's difficult to read emotion from bare words. Words come across as insulting when they aren't meant that way. And we should work hard not to get into a negative cycle of communications. Let's keep it positive, do our best to help each other, and quietly move on if we don't get along with someone.
Personally, I'm interested to see what's in the bottom of the oil pan. I just pulled a 12X12 inch shop rag out of my gas tank when I cleaned it. Who knows how long that's been in there!