I'll take 3 please.

Kits are fine with me. Please include fuses though.

Look at the switch. If it has 2 sets of contacts you can bend/adjust to get them to fire together or apart depending on when the contacts close.

Beat me by 10 seconds.

He usually has all the parts just not in kit form. Just ask and he will put it together.

The bridge rectifier boards are for a different issue. Yes you should use those boards or fuse your originals. Start at post #59.

https://pinside.com/pinball/forum/topic/vids-guide-to-bulletproofing-williams-system-6/page/2#post-945742

04? Sounds like dead batteries. Did you open the coin door and flip the power switch on/off/on rapidly?

The big green cap hardly ever goes bad.

Don't sweat it. In a home environment if you need to take the boards apart more than 25 times you have bigger problems than header pins. Those pins are probably square instead of round so there is much more contact area.

One thing, just because it looks like Great Plains is out of something send him a message. Never hurts and a bunch of times he may have it anyway.

If I remember right only the early Black Knights had the transformer in the head. All the limiteds were late run. Something doesn't add up. Do your troughs have micro
Switches? Sounds like maybe ou have a "regular" converted to limited.

That would be normal for the limited. The troughs have micro's and the others have leaf switches. PBR had the conversion kits for a while.