Turns out I outsmarted myself, and bought the ft-8800r, which is only dual-band. I saved $100, and now I don't have to spend more money on another antenna.
I mounted the head tonight, which is a little bit further along than I thought I'd be on Wednesday night. I still have all the cables draped over the interior, and my power source is the power-jack. I've attached some photos for your viewing pleasure.
While I was trying to figure out how to mount the face/head of the radio, I went to bestbuy to look at their options for mounting GPS devices, and XM radio receivers, which turned out to be a good idea. I went into the store, and the person in the car audio was entirely unhelpful, knew nothing, but he directed me to the car audio installation bay. I went outside, and walked around the store to the install bay entrance, and was pleasantly surprised when after I asked the installer if he knew of anything that would work, he gave me an XM mount that works. See the pictures.
I decided to mount it on a removable panel for ease of the install, and because I don't have a service manual to see where things such as wires are. The red stuff is the backing of the self-stick adhesive that I forgot to remove before I put the bolts in. heh.
More pictures when it gets light tomorrow, along with pictures of the radio mounted to the floor.