Oil pump = 10k
Head gasket and seals, misc... = 5k
Total roughly 40-50k.
Scenario #2, very light damage only on conrod bearing, 1pc con rod bearing = 1k
Pull down oil pan and loosen and install conrod bearing = 5k, "dukot method.")
Oil pan gasket, misc = 1k.
Total roughly of 10k only.
Add micropolish of crank if there is only a slight damage and oversize conrod bearing = 5k + 15k for mount and dismount of engine from engine bay.