thank you so much! after reading ur replys, i wrote up a new plan (adding an extra day)

DAY1: Portland,OR to Heyburn,ID; 594 miles, 10 hr
DAY2: Heyburn, ID to Rawlin, WY; 429 miles, 7-8 hr
DAY3: Rawlin, WY to North Platte, NE; 367 miles, 5-6 hr
DAY4: North Platte, NE to Columbia, MO; 546 miles, 8-9 hr
DAY5: Columbia, MO to Metropolis, IL; 290 miles, 5 hr
DAY6:Metropolis, IL to Savannah, GA; 641 miles; 10-11 hr
DAY7: Savannah, GA to Kissimmee, FL; 302 miles; 5 hr.


Day 1 & 6 are the long days!!!
tell me what you think :D