I have a steel 84 Trek 520 and I plan on installing a 1x8 sti setup with 2 salsa crossing guards. I will probably go with something like 42 in the front and a 12-28 cassette. It will have drop bars, probably the original shimano cantis, and in line levers along with the brifters. Hopefully I can get a 700x32 tire in there but would a 700x28 work as well? Should I upgrade the brakes or will old cantis/new pads work well?
I know this is all relative to the course/conditions/competition as far as gearing and tires are concerned, but does this sound like a terrible idea with this Reynolds 501 frame? Will it be way too heavy to shoulder? I don't expect to podium (duh) but I also don't want to come in last place.