I just thought I'd update how things went with the new plugs and wires. I
took off the old plug wires and looked them over. They're Bosch wires with the plastic ends.
It turns out those plastic ends were just screwed into the ends of the wires. I took one of the plastic ends and cut it in half length wise on my bandsaw. Here's a pic:
That little screw just screwed into the end of the wire _ there was no receptacle for the screw to screw into. Just bare wire contacting the screw.
As you can see from the cut plug end, there's nothing but plastic there. Those springs I found (yes, I found more) were inside to make contact with the screw head to the spark plug. It's a wonder that something so half-assed lasted the 1300 miles that it did. I'm assuming Bosch wouldn't sell something like that, but rather Vintage had a spool of the wire, and just put any old ends on there to get the car on and off the delivery truck.
Anyway, after getting the wires that Wolfgang suggested (and using the nifty trick he suggested to use a piece of old fuel hose on the new plugs to gently get them started in the holes), using the NGK plugs that Danny suggested, and recommended tools that Gordon suggested in a past thread, things went pretty smoothly. Once things were in place, the car started right up. I gapped the plugs at .026, as that's were the Bosch plugs that I took off were set. (and I never had any issues with the engine running poorly).
The only other thing I needed was penetrating oil to get the number 3 plug to break loose, and a small magnet to get one of the springs that was dangerously close to dropping in the hole after the number 3 plug was removed.
Thanks to everyone for all the help and advice - I used most of it, and it made things go much easier that it otherwise would have.
I bought the Pertronix electronic ignition module, so that job is next. I'm going to wait for a bit though - Fall is my favorite time of the year for driving the Speedster. If I screw something up, at least I'll have gotten some driving in before getting it to a shop for them to clean up my mess.
Bill