Gratz on your new CZ! The CZ 75 BD was the first CZ that i picked up and the first CZ that i sent out to CGW.
Lighting the DA trigger pull starts with reducing the hammer spring weight as i see it. Generally you can go as low as 15lb without the need of other parts and still maintain consistent primer ignition on all primer types. Reducing the hammer spring further requires other parts to maintain consistent primer ignition. Lightening the SA is more so a matter of the hammer geometry, hammer hooks and to a lessor degree the hammer spring/Trigger Return Spring (TRS). Internal polishing plays a part in lighting and smoothing out the SA and DA.
Aside from swapping triggers, reducing the pull length is only obtainable with the CGW Reach Reduction Kit (RRK) as far as i am aware. The CGW RRK achieves a reduced pull length with the installation of a special disconector that reduces the at rest SA trigger position and a trigger with a Pre-travel set screw that reduces the at rest DA trigger position.
I would suggest calling CGW directly and discussing your needs with them. This is the quickest and most efficient way to get what you need as i see it. They are not the types to up sell in my experience. This is also what i did back when i was new to CZs and was not quite sure what parts i needed to achieve my goals.