I tried a couple times to buy a NOS or new made wiper motor and spoiler alert, none are available. I was able to buy a replacement from an eBay seller and adapt to the the van. It was simple, really and it might be even easier with another (61-67 ford pickup?) motor assembly. I had to stack some flat washers between the mount and the motor to make it work, but it works just fine.
I’m making good progress. You saw in a previous post that the engine was in – it’s now running well.
I’ve ordered a new RH floor pan from an eBay seller to replace the old one as it resembles Swiss cheese more than a floor.