Straight boot on number six for me. Actually...it's more of a 45-degree bend vice the 90-degree bend for the other seven. I'm in the middle of swapping out the factory wires for some Taylor 8mm. I'm hoping/praying that I'll be able to squeeze these in the factory looms. I also wish I had smaller hands...routing those wires behind the driver's side valve cover is a pain.
Oh...back to your original question (I'm trying to remember from last night and am at work today so I can't go out and look at the car). Number 1, 2, and 3 were all approximately the same length (longest). Number 4 was slightly shorter. Numbers 5 and 6 were approximately the same size as was number 7 and 8. I can't get exact lengths for you, sorry. But, with the Taylor set, each factory wire was approximately an inch shorter than the replacement wire, which will give me a little fudge factor when routing these. Good luck with your wire swap.
Cheers,
Joe