Might want to include whether or not you'll be using a merc, and upto what expansion do you have? The info you already provided would be a great help, if I knew more about soloing / moloing a Pal, but I quit playing the highest one in the 60s.
If you're gonna solo with a mercenary (molo) and have Seeds of Destruction (SoD), then Field of Scale animals should be good. If you don't have SoD, there's several quests in Loping Plains for kills, including Goblins, Worgs, Wereorcs, Alligators, and even some quests involving undead. Some, if not most of these can probably be soloed, but will be challenging, I'd imagine. I never been to LP with less than 500 AAs, but also start in the 70s. Hills of Shade is full of undead also, but may be a bit tough to solo or maybe even molo. I know raid geared Pallies used to solo there alot. If LP seems too hard to start with, you can try the Farm in Dragonscale Hills. It is very easy by 80, and the quest XP is descent AA even at that level.
If you have the cash, and any is still available in the bazaar, the turn-in items for Thach Jerden
's armor is very nice. They've changed alot of shared tasks, so I'm not sure which ones are still good to do, if you can. But you probably wouldn't be interested in those anyway, as they require a group.
That's about all I got atm. Hope it helps some.