Can someone explain me how to make giil?

[Xoo]

Before I quit I was farming Sentinel gear dropped from "NMs" in the Strongholds. The 3 that I have found to be soloable (both in your ability to kill the mob and reaching its camp) are:

Lv52 Natalan Sentry: Drops Brass Natalan Coffer Key which opens the coffer nearby containing Sentinel's Gauntlets. 20% drop rate on key, 20% drop rate on the Gauntlets. Mysidia's prices were 500k~600k a few weeks ago.

Lv53 Natalan Sentry: Drops Copper Natalan Coffer Key which opens the coffer nearby containing Sentinel's Plate Belt. Same drop rates. 600k~700k last I checked.

Lv55 Zahar'ak Feretrar: Drops Brass Zahar'ak Coffer Key which opens the coffer nearby containing Sentinel's Sabatons. ~10% drop rate on key/item. Sold for about 2,000,000.

Of course, you can form parties to farm the remaining pieces which naturally will sell for much more due to the difficulty in obtaining them. Sentinel's Cuirass and Sentinel's Helm were last going for 5~7 million. Sentinel's Trousers I have yet to see, so..