i'd be interested. although personally i think it is a better drive going the opposite way, ie. climbing glorious and descending nebo. if you wanted to go that way i know a good way.
head out towards ipswich, take toowoomba highway, jump off near blacksoil and take pine mountain road, lotsa fun. go through fernvale, turn off before wivenhoe, go up between splityard creek dam and wivenhoe, turn off to cedar flats, climb glorious, go part way down nebo. stop somewhere for lunch.
just a suggestion.