That Voyageur looks great. Will the wheels fit?

I used to look down my nose at Ashabula cranks, because they came on low end bikes. Now that I've worked on a ton of them (pun intended), I realize that the ONLY bad thing about them is their weight. They are durable and reliable if made well. I wouldn't mess with it. I think the aluminum chainrings are worth a try. I wouldn't change the spindle or arms, though. Schwinn made the best, by far. Check out the bearing surfaces. They are hard and precisely ground. Same for the threads of the races.