w116 300sd Brake Calipers Bendix vs ATE

[xaliscomex]

1979 300sd (w116)

Will be replacing the front calipers to my 300sd.

I have Bendix calipers at the front and ATE on the rear

I own 2 W116 300sd's and noticed that my other 300sd has ATE calipers all the way around.

There is a stamp with the numbers "1572" and "60" on the outside of the Bendix calipers.

Not sure what these numbers refer to.

I have been reading the ATE vs Bendix topic on several forums but not much information referring to the w116 300sd.

I have the pads from the dealer (Vin number provided) and turned (cut, machined) the same rotors.

Question#1
Will the dealer brake pads fit both the ATE and Bendix Calipers?

My concern is that the new dealer pads might not fit just any brake caliper.
I think I should stick to the dealer calipers so that I won't run into problems.

Question#2
Is there an upgrade with rotors and calipers and do they both fit a 14 inch rim.

The reason I ask is because I read that on some of the other Mercedes Benz there is a difference when using a 15 inch rim vs a 14 inch rim.
Not sure if this is relevant to the w116 300sd.

I just want new calipers and need to be educated on my options

Any advice is greatly appreciated