I have been wondering, what is the best way to convey "I want to be good at klingon"?

The most accurate verb seems <po'> (be expert, skilled) but I'm not sure how best to convey the "at" in "expert at klingon", how to make the link between the expertise and the object of said expertise.

Do I just use -vaD ?
1/ < tlhIngan HolvaD jIpo’ vIneH >

or is it best to use some kind of construction with < bop > (be about, be concerned with), as in "I want to be expert concerning Klingon"?

​2/ ​< 
tlhIngan Hol bop
​lu’​
DI’ jIpo’ vIneH
​ >​

​3/ ​< 
tlhIngan Hol bop
​lu’​
taHvIS jIpo’ vIneH
​ >​

​4/ < ​
tlhIngan Hol bop
​lu’​
chugh jIpo’ vIneH
​ >​

​5/ ​< 
tlhIngan Hol bopwI’vaD jIpo’ vIneH
​ >​

6/ < tlhIngan Hol bopbogh SovvaD jIpo’ vIneH > 

What do you think makes the most sense out of these options and what is just "chatlh" ? Do you have another solution you'd like to suggest on this ?

Satlho’ ! :)