I'm not sure why there is a level of fighter in this build, unless it's flavor?
*Human will get an extra feat over dwarf, you could use that for a 2hander.
*Better yet half-elves (if you have them) can select a bonus feat, that allows you to use any melee martial weapon.
Both of these races can increase their wisdom through enhancements
Both of these races can improve the amount the healing aura hits them for with enhancements
Pure clerics also get access to quite good melee buffs sooner, as well as blade barrier, implosion etc
I wouldn't multiclass a spellcaster, then try to get good spell pen...
Cleric's can fight just fine without multiclassing, and thus reducing their spell power.
Just my thoughts, each to their own.