Tom,
Only add-on armor for AAVP7A1, as used in OIF, is the triangular shaped EAAK armor as seen in the Hobby Fan set and on the Hobbycraft/Trumpeter AAVP7A1 kit. No other armor is used on AAVP7A1s.
As to the Tamiya Flier, it was a photo that Tamiya had made a couple years ago of possible kits that they may remake, rerelease as oif kits. The two AAVP7A1s in the photo were custom made by a modeler who works for Tamiya. Hobby Fan is currently the only set out there for the AAVP7A1. Hobby Fan is also supposed to be coming out with a full interior set as well. Trakz, from Verlinden has also announced a few sets for the AAVP7A1, to include EAAK armor and an interior.
I plan on using the Trumpeter EAAK, since the hull and running gear on the Trump kit are trash, and adding it to a Tamiya AAVP7A1. Will also add a Bradley running gear and new exhaust set-up, along with full scratch interior to get a latest model AAVP7A1 RAMS w/ EAAK.
Check out Vodnik's site for reviews off all the LVTP-7/ AAVP7A1 kits out there.
Tamiya LVTP7-A1 AAVP7A1 w/UGWS Academy LVTP7 Mini Hobby/Hobbycraft/Trumpeter AAVP7A1w/ UGWS and EAAK