I have the same year model as you and am also restoring. It is a 1969 with the rear axle mounts inside of the rear loop. If you notice most if not all Golden Pintos you see have the mounts rear of the loop. Anyway, I do not see any provision on mine, front or rear, as to mounting of fenders. I am wondering if this year, 1969, which had a rear disc brake, did not come with fenders maybe?