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This is probably totally not up your alley, but I will share a couple interesting links that may or may not be useful to you:
1) Re-seal your compressor. Most leaks are at the compressor front seal, and a lot are on the back of the compressor. I have a bunch to re-seal and have the tools, so it is worth it to me, but may not be for you. http://www.youtube.com/watch?v=CD5lLC5v6PE
I've ordered from this guy. His shipping is fast.
2) Wire Harnass Connectors. This guy has a bunch of stuff like this and may have what you are looking for. Check out his selection of bolts that I think are priced very reasonably. He will combine shipping so it help bring the price down. I just bought some stuff from him. He sells some wire connectors that I bought at Bloomington Gold that I could have bought for pennies on the dollar from him compared to what I paid at the show. http://stores.ebay.com/Page-Auto-Supply