Kemba, Kha Regent is a deck in my to do list. I've built her a few times, but it never really works out.
Main issues that's come up is either the equip cost is too much with a board full of them, or that stuff in white is generally a bit costly. This isn't green, nor do I have land tax, so getting to the 4-6 mana range sometimes is rough, and I lose a lot of steam trying to get the engine going.
This deck is WIP, and random cards in there are just there cause other decks took the good cards this deck had (Sol ring is one example off the top of my head.)
I've had a great deal of luck with the artifact ramp - even little effects like Traveler's Amulet stack up well with Expedition Map, Wayfarer's Bauble, Armillary Sphere, Pilgrim's Eye... Plus Sun Titan can recur them out very easily for even further ramp! Expedition Map can go for Emeria, and you can have even more fun...
I'm gonna guess Stoneforge Mystic is in another deck, if you don't have it in here - even with the Torpor Orb she's valuable for cheating equipment into play! Plus you do have other ETB creatures like Stonecloaker...
One shot ramp artifacts? Hmmm, interesting. Might consider, even though I have no real lands to try and grab.
Also Stoneforge Mystic. Yeah...... Of course I have those, two playsets even..... just, gimme a minute to get it from my collection of cards at home.... (runs away). No, I don't have a stoneforge. It was too expensive when I got back, and now I'm considering it.
Equips in this deck generally has two functions. Protection and cat token gets in. Armor does neither, and warhammer isn't as strong as I liked. Tried Armor, and it didn't do anything except be overcosted.
I dunno what card that is? Isn't it called Trading Goat?
Trading Post is a value generator. It's best use is it's 3rd ability: returning artifact from your graveyard to your hand. Helps out against removal, which will happen. With all of the cat tokens Kemba makes, paying the cost of that ability isn't a problem.
You should reconsider the Equipment suggested. Kemba is a great token producer, but she more efficient as a Voltron Commander. Equipping Kemba and hitting for 21 Commander Damage can be easier than building up an army and bashing in for 40+. After a sweeper, casting and re-equipping Kemba is less resource and time consuming than rebuiding an army.