Here's my version with a basic S-10 Blazer rear window wiper motor. Kinda like the one above only different.
Here's the basic, bare metal bracket. It's .125" cold rolled flat stock that's been laser cut and bent.
Here it is put together
. Here's the pivot bracket and it welded to the locking collar
I tacked the bracket onto the collar with my MIG welder. All the other ones will be TIG'd. Here it is on the motor.
PM me if you have any questions