Best setup for a merc

I'm talking about an A2 merc, but I don't really see what difference it makes (though I've never used any other mercs since my noob days).

I almost had a Levi (196%ed, +146 def, +50 str, 25% DR) with a rare jewel in it that had -15req, 28%ed and... low fire res I think for my merc, but I got IP banned during the trade.

My ideal setup for a merc would be perf Levi with a +18 max, 30%ed, resall10, +10 min, -15req rare jewel, perf CoA (for DR) with a pair of those jewels (sub the -15req for 7% Faster Hit Recovery or maybe +4 Replenish Life) or perf andy's visage (for life leech and ias) with one of those jewels, and a perfect, eth bonehew with 2 amns.

Anybody got a better reccomendation?

Er... also, could someone change the title of this to Best Setup for a Merc instead of Armor? I didn't even think about the others 'till I started typing.