Anyone have a good stone/ice build?

Stone/Ice is not what you're going to want to play. Based on what you say you're looking for in the Tank, it's not going to fulfill any of those desires (other than the killing slowly).

Suggested alternatives:
Primary:
Pretty much anything, but I would place Shield, Fire, and WP on top, maybe Dark.

Secondary:
Pretty much any secondary. Ice Melee isn't exactly conducive to solo-sized spawns but it's doable if you want it.

Stone/Ice won't offer you anything you're used to with damage... I really wouldn't recommend that combo to you, especially as a first tank.

From what you're looking for I'd suggest forgetting about Stone armor; the penalties of -speed and -jump in Rooted, to say nothing of the -recharge and -damage in Granite would probably bore you silly. Now I don't want you to think I'm down on Stone, I've leveled two Stone tankers to 50 and it's a great set; I just don't think it's the set for you based on your statements.

Primary wise I'd suggest either Invuln or Shield; both can be very solid defensively and both will do a good job holding aggro. The Invuln will be the tougher of the two nearly reaching Granite levels if built right while the Shield will do considerably more damage; either is tough enough for nearly anything you may face and they don't have the penalties of Granite. I'd probably suggest Shield for you due to the increased damage output; it'll be a bit slower starting than Invuln but once it hits it's stride it's quite survivable.

For your secondary Fire Melee will offer the most AOE damage as well as a good solid single target punch at the expense of any form of damage mitigation... other than killing faster that is. As a bonus, it's the lightest on your end bar.

Stone Melee offers a huge amount of damage mitigation; both of the hammers have knockdown, Fault is an AOE knockdown and stun, Tremor is an AOE knockdown with moderate damage and Seismic Smash is a MAG 4 hold (yep, FOUR, it'll hold a boss in one shot) in addition to being one of the hardest hitting single target attacks available to tanks.

Super Strength is the classic pairing with Invuln; it's a solid set but I haven't played it myself so I can't offer any first hand knowledge. It has solid single target damage and though you have to wait until 38 to get it Footstomp is an excellent AOE attack. I've been considering rolling up a Shield/SS tanker myself recently.

Ice Melee is effective with damage mitigation but it's somewhat lacking in damage output; coming from a blaster/warshade background it would probably be frustrating to you.