Portable Merchant and Banker

[AndMetal]

I know trevius has an item on Storm Haven that casts a spell "Summon Banker", although it looks like he created a unique spell for it.
From his tweaked spells_us.txt file:

3900^Summon Banker^PLAYER_1^Temporary_Banker^ summon a temporary banker^ summons a temporary banker^You summon a temporary banker^ summons a temporary banker^Your banker vanishes^0^^0^0^0^0^0^0^0^0^0^1^0^0^0^0^0^0^0^0^0^0^0^0^0^0^0^0^0^0^0^0^0^0^0^120^0^0^0^0^0^0^0^0^0^0^0^0^0^-1^-1^-1^-1^1^1^1^1^-1^-1^-1^-1^100^100^100^100^100^100^100^100^100^100^100^100^0^1^0^0^152^254^254^254^254^254^254^254^254^254^254^254^6^0^14^-1^0^0^255^255^255^255^255^255^255^255^255^255^255^255^255^255^255^255^44^13^0^25^0^0^0^0^0^0^0^0^0^0^0^0^0^0^0^0^0^0^100^0^48^329^0^0^0^1^0^1^0^0^0^3900^^99^^0^0^0^0^100^0^0^0^0^0^0^0^0^0^0^0^0^0^0^100^0^-99^0^0^0^0^0^0^2^0^0^0^0^0^0^0^0^0^0^0^0^1^0^0

It just replaced an unused spell, Free spell, in the spells file. Then, you just need to add Temporary_Banker + the NPC ID into the database.

Hope this helps.