When I got my older Atlas mine was broke just like yours. Believe it or not I drilled a row of small holes along each side of the break and sewed it back together with some heavy thread and coated it with epoxy. I figured it would last until I could make a new one . It has lasted over as year so far with no problems at all.
HWF
With your input I repaired mine this way , Photos belowWhen I got my older Atlas mine was broke just like yours. Believe it or not I drilled a row of small holes along each side of the break and sewed it back together with some heavy thread and coated it with epoxy. I figured it would last until I could make a new one . It has lasted over as year so far with no problems at all.
HWF