So for the Lvl1 Poverty run, you could use well + false life/armour of agathys if you have them as spells. For the non poverty run you could add in aid as well from scroll. With a 16CON cleric that looks like it would give you 11 base + 10 well + 5 aid + either 5 armor of agathys or 7 false life. for a max of 26 + 7. That extra 10 from the well might actually trivialize the Lvl 1 "all equipment/consumables allowed" run since since the well + aid HP can be healed with pots.