There is a buff NPC in PoK with free buffs up to level 40. The buffs are always pretty affordable no matter your level. You can also get premium buffs, which are just better versions of the same buff type (Better DS, better Regen, etc). NPC is named Rubrae.
There is also a group of NPC in PoK near where the Loyalist NPC would be on live. There have armor quests for each class (more like armor type I suppose) you can do every 10 or so levels for current(ish) level gear.
While killing stuff someone a custom currency drops called Diamond Coins. They sell for about 250p each, so they are good to sell in your early levels for spells, bags, food, etc. They are used as a currency to buy you max level spells and can be used to buy raid gear from vendors in PoK. The most current raid gear isn't available (or it wasn't when I played) but the tier before it is. Lots of other stuff is available for Diamond Coins.
Speaking of Diamond Coins, don't be afraid to sell or use them pretty liberally. They are uncommon NPC global drops but also you can convert AAs to Diamond Coins. Vice versa too. Eventually you'll max out your AAs, so they will come fast and steady.
You can buy Tokens of Resurrection and Tinkerer's bags in PoK from a Shady Merchant.
I'll think of more that remember from my time on Laz.