rear push handle mount and 10" rear wheel adapter

Hey guys do you know where I can find that steel tab that mounts to rear of lawn mower to change my swing handle to a rear mounted push handle. Another thing I can't seem to find is that adapter tha allows me to run a 10" rear wheel instead of the 8"s that my mower comes with......even just a close up pic might work and I will make a couple.....

Thanks

Tony