Nothing like keeping it all vintage!
One suggestion: take a fat sharpie and mark a line a couple inches inboard of the edge of the front roller on both sides. You probably don’t need it, given the high flange on those rollers, but you will have those moments when your minds wanders. First thing you’ll do when you realize that you’re not paying attention is to look down at the front roller to check that you’re not about to ride off the edge. The lines will give you a quick visual check on your position.