Spruce can have an exaggerated difference in strength between the soft white summer wood and the brown winter wood. In model airplane making and acoustic guitar repair it is not unknown to use slivers carved out of the dark wood only.
I've never tried to rout it, but I believe Widerange Hum that it can be weird due to the dramatic hard/soft grain.
Because of the large soft/hard ratio of the grain, it makes a more difference than you might think whether the spruce is quarter sawn or flatsawn.
I still have fond dreams of a Jazz archtop I owned for a year with a carved spruce top. Best living room electric guitar ever!
I expect that the difference will be a lot.
I work almost entirely by hand. The most challenging woods to plane cleanly are the woods that have really weak earlywood and harder late wood. The older the wood is, the more powdery the early wood seems to feel (though improper drying can torrefy it, too), and the harder the late wood seems to be.
My preference for something rift or so with spruce is only cosmetic. I haven't decided what I want to make the neck out of on this guitar, I'm taking it as a challenge to build cheap, but there are two things I won't compromise on - nuts and tuners. Nuts aren't expensive enough to worry about, and nothing drives me up a wall more than cheap tuners.
I have enough scrap that a cherry neck is effectively free (over the course of building other things in a given year, there are always some quartered pieces big enough for a neck on a tele), but it doesn't help with making "that junk look" that i'm looking for here.
The other thing I don't know about spruce is how well or poorly behaved it is when it's flatsawn.
Because I work by hand, I sort of look forward to the feel of the hand work. I think I'm going to plane it and then burnish it hard to make the latewood stand above the early wood. Dents won't matter, it's going to be padded with varnish, and the kids will get a hold of it for sure.
On the other hardware front, other than tuners, I kind of like the bulky chinese toploader bridges on a tele. I have one on my first cherry tele, and it is the most vibrating s.o.b. that I've played. I'm attributing that to the cherry, but it may just be the particular cherry that I've used.
The norway spruce I mentioned above, I sort of bought and stashed aside. I'd like to make a carved archtop guitar or 6 at some point in the future, but the first one won't be with that top pair.
I was pondering what I'd bind spruce with last night. That doesn't really fit the vibe, but ash can be worked so that it's really flexible if it's split (think baskets) and I might bind the spruce with ash to get a nice dive look.