Well whatif had a good idea but there are 2 downsides.
1st downside this metod only works untill there are grinders sold for a reasonable price. On the whole chronos server there are 3k grinders for 2kk each. After that you have to pay 4 dollars to get one ultimate jewelry box or 150 to 400kk adena. On naia grinders are sold for 9kk so it isn't worth the effort.
2nd downside when you will be 100 with an r99 +6 you will be kicked out from gludio or af parties because you are undergeared.
I have a different approach. My best l2 moments where in k85 when due to ncwest dcs a party of 7 became a party of 3 then the healer prd saying "we don't have the dps" and joined ms 3 months later. We, only 2 of us, made k85 in 58 mins. I've never enjoyed l2 so much.
This is how l2 was and still should be and not the toxic game ncwest wants. Do what you can with what you have and don't bother about gear because even the top players will have to upgrade all from now on