if you plan on healing the language shouldn't be an issue. as for a healing tank oracles can be very good. if you wanted placements for stats i would put them as such:
str 16 to hit things and carry heavy armor
dex 12 get your +1 dex from full plate
con 15 tanks need hp
int 9 you should have a rogue for skill points
wis 14 will saves are important
cha 17 for your spell casting and save dc
for spell selection i would focus on healing, buffing and inflicts.