Looking for part info on Spark Plug Cleaner / Testers

I Have a Champion Model 500 Series, A Champion Model 800 and an A/C Model K.
Is their any chance someone has a copy of any of these owner manuals???
I need the Champion Air Gauge to if someone knows of a source for Parts please let me know. I want to restore these for my Garage as I also Have the Early Sun Master Motor Tester and Distributor Tester.
I may be interested in any parts that you have.
Thanks,
Fullraceflathead