That looks like a good list to me. You're likely to outnumber dwarves and chaos significantly. If you concentrate on absorbing/minimizing the effectiveness of your opponents hardest units (knights/warriors), and picking off the weaker ones, you should come out on top. I might drop a skirmisher, the helblaster, and a magic item and get a third hero. 22 units makes for a lot of brigades.
For magic items, the orb of majesty is a good one to have. Crown of command also is very effective, but quite expensive. The lessor ones are good for rounding out leftover points. They rarely are decisive in a battle. A big cavalry charge could very well be decisive, that's why the orb and crown are popular.
You could separate the crossbowmen into singletons, and spread them out amongst the bases. Add in some spare halberdiers, and you have pretty good conversions and enough crossbow units

I use the warmaster fantasy rules with the current FAQ. Unfortunately I have them printed out and am not sure where they are online. Ancients is interesting, but has some major differences. I've heard no complaints about it though. There are different stats too, and obviously no magical creatures.