My chaly automatic

Hi, I recently bought a pile of nicely painted CF70 ready for rebuild. I find that it has the wrong seat to lock on frame and the new fuel tank fits but the fuel tap below it does not line up with the hole in side for knob? The front forks do not have "wings" to mount the headlamp and are 25mm dia not like my ST70 which are 20mm and the sleeves need replacing- does anyone have any info on this model. I saw a schematic showing a front basket and the headlamp mounted on this? Any comments would be good. Thanks