" Damon_Tor " has some Crit-Loop builds, over at wotc.
Otherwise, the Battlemind handbook over there has 99% of what you want.
Dark Sun ... is weird.
Do you play No Metal ? That would screw up the Plate. Looks like you get it anyway.
Do you play No Magic Items ? That would screw up normal builds from the guide(s).
If you can get Magic Items, but you can't guarantee which ones,
multi into Wizard just for the Ritual class ability. Take Enchant at level 6.
No Matter What (tm). Your party will thank you ... eventually.