Twisted Fate Support -- Rapid Fire Cannons N'Stuff (Any additional wisdom?)

This thing is amazing.
Hey there, Onwodori here. Slowly becoming a Twisted Fate main this season -- he's just such a flexible champion!!
Gushing over. So, what I have found to work great so far for TF support is:
or
depending on the lane and then
or
and last but certainly not least
Now, the crux of this set is the Rapid Fire Cannon, giving TF a hard hitting, long range, 2 second stun (you're maxing W first friend) that is on a 5 or so second cooldown, down to 3 if you desire so.
That's powerful, to say the least!
In lane, poke with blue cards and stack up E procs. Ideally, you want to hit minions until you have an E ready, pull a blue in the bush, walk up to the enemy ADC or squishy support and bop em. As you progress, you will want the items I listed to increase the range of your stun (duh) and get some pretty cheap damage. You end up with the odd mix of GP and Bard as far as play styles go: You like on hit effects, have poke up often, can scale up if you get gold and like magic pen quite a lot. Oh, and near global power.
A finished build might look something like this, with variability on the last item:

Now, what an odd build you must be thinking! Perhaps, but it permits for SURPRISING burst damage on that first, long range gold card, the 60% crit change you have from your 3rd and 4th item in this build making Static Shiv hit for it's double damage more often than not. Because everything hits for magic damage besides your iceborn gauntlet, magic pen
are both excellent choices. For more sustained damage
and for higher damage overall, something like a
all offering meaningful damage, utility, durability or all three!
Let me know if you would do anything different or if you're an old, 'Pax TF' pro or some such thing and have some wisdom for an aspiring rookie.
Thanks,
-Onwodori