zhuan i am doing same as u. clearing out dwarfen underground. i have spiderboss left to kill to.
paladin start with rez spell. i use mass bless , lvl 2 and 3 rezes and sometimes stoneskin. the other spell i use rarely altough i plan to make my dragon slayer to lvl 3 for mass effect in endgame.
about my money : yes its very hard with money on paladin. i havent invested in the mind thread at all and traded for magic and might runes one time. i have alot of units in stock though. like 300 griffins and 300 royal snakes 100 shamans 200 evil beholders and a few more units.i also have like 20 artifacts i dont need but i save couse they are part of a set or give specific bonus for monsters wich mayby will come in handy later on
.
when i find units i wanna use buy all of them and transport em to a friendly castle preferbly human or dwarf main towns. so i save time running around look for replacments.also i can change my stack to priests and inqvisators if undeads guard an area.
royal snakes are pretty much awesome with frogwife and snake boots
my next plan in game is to upgrade the evil necro head, i read on the forum it gives +5attack and +5int.