A Tale of Two Wipers

Okay, stop me if you've heard this before:

The rear wiper blade on the wagon has snapped off.  It's a discontinued part.  Two ways to go fixing it:

   

1. It's a clean break at the base- so I can attempt to have it welded  or...
   
   2. Use an alternative part that fits (e.g. 2000 Dodge Caravan rear arm) , ala this hack
   

Anyone tried these I'd love to hear how they worked out.

Thanks

You can not weld the base of the wiper arm, it is pot metal. The Caravan wiper arm fits, but looks a little out of place.

Looks like this?