Good luck making that bet ...
Technically Dark Sun doesn't have deities for Clerics,
and Artificers are "supposed" to be screwed.
DS is supposed to have boons instead of items
but the rules are somewhat unfinished. Gives you room
to negotiate back in to an Arty-ish character - if you want.
Ardent probably is closest to the game feel and what you prefer.
Wotc CO has the guide. You can find
something near your ideas.
I like Cog Crystals, but that's just me.
Some of the builds are rather Healy, but they don't have to be.
"Leader" is kinda where all the in-combat buffing type spells ended up.
This gets extreme with Lazy Lord (warlord) builds, to not even attack.
Ardent can be mixed in with Lazy Lord ... not that I've any pointers on it.
4e is not 3e.
Take your 3e ideas and throw them out the window.
Just play it and see how it goes / roll and role with the punches.
It says D&D so hey ... why not ?