A few thoughts:
-If you don't need the gear basket, ditch it. It adds extra height/wind resistance/loading difficulty.
-If you have a high dollar composite boat, get a set of saddles to protect it. If you have a polyethylene or other durable plastic boat, basic foam blocks work well or you can put it directly on the crossbars and let them tip to one side before strapping it down.
-Cam straps rock! (not ratchet straps, you can crush stuff with those

)
-Space your crossbars as far apart as reasonably possible and you may not have to use bow/stern lines. How many canoe or kayak trailers do you see with endlines on all the boats?
-If you do use endlines, don't tighten them too much or you'll end up with a banana boat

-There are replacement parts available for most Yakima/Thule racks and attachments, so don't be afraid to buy used.
Malone Auto Racks is another company with some good products.
Not a 100, but the idea is the same
11' and 12' kayaks, Sportrack 48" square bars, foam pads with square groove, cam straps
11', 12', and 14' canoes, Yakima 66" round bars, cam straps
2 canoes on the Yakima rack
