I know what you mean. I built an overhead rack to hold my canoe planks. I have nearly 80 planks 3/4 inch by 1/4 inch by 14-16 feet. As you can imagine, with those dimensions they are floppy and fragile, but they still add up to a fair amount of weight.
Building the rack took me about 4 days, most of it taken up with working out the design as I went. I think it will work, despite being a bit crooked. At least, all the planks are on it, and it hasn't fallen down yet :-)
It's fiddly work that doesn't seem like building a canoe but nevertheless is necessary before I can start.
Thanks for the canoe update. I guess the classic example is "spade work" in gardening. Turning the earth, one shovel at a time, before even the seeds are planted. Yet it is critical to the process.