Route looks pretty good. Im guessing since this is your first IBA you preparing yourself as well as the bike. The IBA tips are pretty good reading! http://www.ironbutt.com/tech/aow.cfm
Clothing is a key to success to avoid dehydration. Pack some water with you and wear your riding jacket. My best combo in your temps has been long sleeve riding shirt with mesh jacket. That wind will suck the life right out of you. Boot straps for your pant legs or that flapping calf leg will suck about 10 hours in. Lip balm and sun screen. Even the full face can lead to a sunburnt nose.. hehehe
Remember that every gas stop is a possible 15 minutes lost so I try to hit the first stop in and out and the next take the stretch. Steady milage saves time too, where your Vega gets the the optimum MPG and a good cruising speed. You got some mountains to overcome it looks so know your possible gas stops. Planning leads to a great memorable ride, enjoy and don't forget to post a ride report with IBA in the subject line.
2011 White Vision - Nuvi 550, Lowers, Lloydz 2nd filter, Vic perf filter, CB/Icom, 96 Brake LED's, Clear Signal lens/Switchbacks, VIC Hwy Pegs, Stebel Horn, 7Jurock 15" Shield, PCV, Lloyd ATS and Variable intake, Ness honkers
2004 V92 TC - S1 flash, level 1 slip-on, Ness big sucker K&N, ISO Grips, 4x1.5 Highway Hawg Risers, extra chrome (never too much), JM 2k CB 4' antena, Mustang seat, HD Front TS & Lowers, OD Pulley
Retired Navy SCPO