No worries.
*Seat bag I'd check out this one.... This is likely you're only/best option as most are going to require more than the 7" you've got to work with. I've got one of these, it's rad.
http://www.porcelainrocket.com/product/small-seat-pack/Scott's stuff is the best in my opinion.
*Frame bags off the shelf are a limited. Revelate does some, check their site for their sizing chart. You'd have to measure the triangle space on your bike and compare to their charts. Custom is always an option if you've got the funds and you can get exactly what you need to fit that space. Porcelain Rocket will do that for you if you want to go that route.
*For bar space the easiest and cheapest is strapping a stuff sack to your bars with some webbing straps.
This is a tidier way of doing that and includes a pouch which is handy for storing all sorts of quick grabs; shades, sunscreen, snacks, etc...
http://www.porcelainrocket.com/product/mission-control-handlebar-setup/Revelate has some options on their site too.
As for auxiliary packs. There are tonnes of options out there. Revelate would be your best bet for off the shelf though.
https://www.revelatedesigns.com/index.cfm/store.catalog/CockpitOsprey packs are the unofficial bike packers back pack so you're already part way there!
Once you're all kitted you can come up over the border and ride that trail he did in that video. It's about 5 hour drive from Vancouver... God's country up there my friend.
