I can farm along some Golden Spiders to put up for sale - just send me a memo so I remember they'd be helpful once you're leveled enough. Can generally just do that for something akin to free - happy to have someone back and would like to see this plan work out for you.
People sell Museum Keys, typically for 15k since they shop sell for 11k in Silversail.
Similarly for Stair Keys, but I'm not sure why you would want to go above the 2nd Floor. Modern Art Sculptures are the undead option aside from Mummy, and the Mummy gets you to Modern Art Sculptures.
Demonic General should be in some. I hit it with my clerics sometimes, but it's more than most things. Same for Spider King.
Both of those have decent value because they route toward Gold Sovereigns and are used by so many characters.
Platinum Coins and Gold Sovereigns are a huge portion of NM's economy now. Look at what can be done for gear and for farming to get sellable items - most drops now have some route toward value:
Gold Sovereign trades: http://nightmist.co....=Amanda_Maxwell
To get Gold Sovereigns: http://nightmist.co....=Thomas_Lambert
Gold Sovereigns are worth 75-125k depending on the market.
Platinum Coin system: http://nightmist.co....ashi_and_Seishi
Platinum Coins have maintained a 500k value for quite a while.
Suggestions for entertainment / exploring:
Undead monsters list: http://nightmist.co....Category:Undead
Lower Levels:
Spirit of Ariat (level 25 and lower)
Mummy + Modern Art Sculpture
Demonics + Demonic General
Spider King (possibly pretty low level; I don't know how hard it is for solo paci)
Balrog in Gnome Caves.
Minotaur on the Frostborn Mountain.
Water Wraith out near Dvengar Stronghold.
Level 29+:
Farming Shaman's Masks would be a huge thing if you get to doing Ganymede - people would pay for Shaman's Masks (valuable and 3 Platinum Coin trade).
But my understanding is that is a complex puzzle requiring a ton of Nightshade Elixirs if you do it solo. So, it might take a lot of work to get to the stockpile of stuff.
Harabec Dungeon - takes keys pacis cannot get, but Pained Spirits rarely drop Spirit Essence which people will buy, and they die fairly quickly to take less mana; thus less /tribute gold once you're tired of Demonic Soliders
You could also venture to Torturers if you could get a Seal of Predicament, and those are great undead exp - though so many traps and hassles...but still a rare, high-efficiency option.
Tirantek - Spirit of Olist --> Seal of Betrayal (I farm that with my level 29 paci; heals, but can be solo'd fairly easily)
Seal of Betrayal (and a couple other items) ---> Land of the Dead ---> Winged Vampire (not sure if paci can solo this one due to healing)
Imhotep - would take some keys you cannot solo, but would be a lot of exp if you stay protected enough - would need extra mana via '/tribute gold'
Ganymede - I honestly don't know how to get this boss done; never played paci enough
Wisdom is the principle thing. Therefore, get wisdom, and in all your getting, get understanding.
-Proverbs 4:7