Hi There,
You can check the following Link:
https://www.youtube.com/results?search_query=ДК+на+минимальном+донате+в+Lineage+2
There you will find a Russian guy from Russian Official who is giving tips how to play a DK with minimum pay.
Yeas it is a long process, but it is not impossible.
There are different episodes ( 14 - The last one 14th was uploaded few days back ).
I hope that u will enjoy the video and will get some idea how to proceed.
Another tips for DK you can find below also from Russian guys.
https://l2central.info/main/guides/1482.html?lang=ru
Unfortunately the info in both are on Russian, but this is the only I can provide.
At least even if by watching you can take the idea.
Ofc you need Prestige and destiny for Adena drop and items drop ( Rune stones, Tersi, beeds etc .. the few things which remain for dropping in game ) ... there are many things, but u need to start from somewhere.
Have fun.