A buddy has a '62 Traveler that I'm thinking of buying for $90. My concerns are...i dont need/want another bike and the scratches on the top tube would bother me. the first concern can be overlooked but the scratches cannot. would a polishing compound help remove or diminish them? overall the bike has decent patina, very original including the schwinn white walls, and came from the family of the original owner what is the tire size? The chain guard doesn't have the "schwinn traveler" graphic but rather the elongated line with a single star graphic, is this an aftermarket piece?