Yeah, I knocked it up.
Epic troll is epic.
You're using Races of Stone and NOT Deepwarden for a Dwarf High-AC build? That's more sinful than committing gay adultery with a 12-year old Catholic Priest, and then beating him to death, throwing his body into a river, and then shooting yourself.
There's a rule somewhere in one of the Races of X books that allows you to switch your racial weapon familiarities around, so you can treat the Warpike and Buckler-Axe as Martial Weapons by default, although you're not so lucky with Waraxes and Urgoshes.
Some stuff to take note of:
Steadfast Determination, because you're taking the pre-requisites, anyway.
Dungeoncrasher Fighter Varient, because you do solid damage when it works.
Driving Attack, because it gives you an ABSURD bonus to Bull Rush attacks, and you're taking that many levels of Fighter, anyway.
Combat Brute and Shock Trooper, because they're a match made in heaven.
Dwarf Fighter 1, because the Warpike and Buckler-axe are both axes.
Fireblood Dwarf and Dragonscale Husk Dragon Magic Variant, because you've got lots of levels in heavy armor classes. Actually stacks with Armor bonuses to AC and scales to a +12 bonus. Is untyped, and therefore applies vs. touch attacks. Gives energy resistances, too.
So, something like...
Barbarian 1/Dungeoncrasher Fighter 6 (including Dwarf Fighter 1)/Deepwarden 5/XXX 8 with XXX being any class with full BAB and heavy armor proficiency (or that you can convince your DM to be treated as giving heavy armor proficiency for purposes of stacking with Dragonscale Husk). Deepstone Sentinel is good, since it causes the area you threaten to be Difficult Terrain, so a cap of Crusader 4/Deepstone Sentinel 4 should work.
Feats: Endurance, Steadfast Determination, Weapon Specialization [Dwarven Warpike], Melee Weapon Mastery [Piercing], Driving Attack, Stone Power, Improved Bull Rush, Improved Sunder, Combat Brute, Shock Trooper, and either Extra Rage or Power Attack.
36 Con (25 base, +5 inherent, +6 enhancement) - +13 (note that Rage does not reduce AC on this build, the +4 Con offsets the -2 AC)
19th level Dragonscale Husk - +12
Buckler-axe with Improved Buckler Defense & Magic Vestment CL 20 - +6
Defending Buckler-axe & Greater Magic Weapon CL 20 - +5
Greater Mage Armor - +6
Barkskin - +5
Ring of Deflection - +5
= an easy 62 AC, also with Uncanny Dodge and a touch AC of 45. A few short-term spells like Haste and Polymorph [War Troll] puts you at 75/44, if your equipment can be worn while polymorphed (it should be, magic items resize to fit their wearer, and War Trolls are humanoid). Use Driving Attack to knock your enemies into a corner for solid damage and abuse them with your tactical feats and difficult terrain. The very low cost of listed items means you have the cash to add just about anything else you need for immunities/flying/etc.