Main bearing cap broken how to repair

I torqued my oil pump to my block and it wasnt fully seated to the cap/block what happen was pump snapped in half and broked the bearing cap. Great! Look at these pics and tell if I need to repair this part or is it necessary? And if yes how to do it? First I thought that I solder it back with silver, but I dont know would it be strong enough. Sure I need new oilpump too.





In last pic you see part that broked off.