[ROVERNET - UK] Prop Shaft on a P4

[Katherine Cuba]

On my '58 Rover P4, there is a central frame cross-member that contains what 
looks like a support and bearing chase for the prop shaft or drive shaft. 
It has some rust in it and looks like it might fail in the future.

Is the frame cross-member available as a replacement piece or do I need to 
get my welding friend to patch and fabricate pieces to repair it?

Thanks for any advice or direction,

Michael
St. Louis, Missouri