I wouldn't hunt white mobs. Go for green. You get more bang for your buck soloing. More XP before you have to rest.
I did Field of whispers too untill they all were blue. Then I moved to Ivory Tower. Timaks are a bit stronger and there are too many group mobs. Ivory tower is perfect. You can solo there untill around 49 or even 50. If you have the coin quest you can get coins from Shackles too.
Gold Wyvrens sell for about 7k each on Dev. So I earned maybe 1 mil off them in the time I spent there. When you hit 48-49 you can try Timaks. They will be green then. But be carefull of the group mobs. As a Glad you can't restore hp very well and 1 group will make you have to rest.
I personally love my WC. Never have to rest.
If you do hunt Timak be sure to keep any chant of Vampire amulets you get. They will go for up to 500k.
If you have a lot of spare adenas, catacomb of the branded is a good place to look for a group. (you need one with a shillien elder in it).
If adena is an issue, take the coin of magic quest from wh keeper sorint in hunters village ad go southwest of oren to the timak orcs, selling the blood medusas should pay for the ss.
Got to 46 in Ailligator Island soloing I started at 36-46 is gotten little slow now where can I level next?
You can hunt anywhere around hunters village, Oren or in Dragon valley once you get into the headless knights and farther in. You can hunt in any of those places solo just have to watch the agro.
I hunted from 45-60 in Dragon Valley but it does get very boring. But alot less griefing in there than around the cemetery