There is a FarRide at the end of May in Eungella, which does not quite fit in with your plan. I am at Urunga as well, so in between Omeo overnighter and getting the Eungella ride in may be able to cross paths somewhere. I haven't even planned getting to and from Toowoomba yet, so a bit early to plan that far ahead 
Hi Saaz,
For info, here's our complete itinerary. We expect to stick fairly closely to the plan, because two of our party are due back at work within hours of our return. The objective was always to spend as much time as possible in FNQ and then bolt for home, and the trip completes a circumnavigation of Oz for two of our group when we reach Rockhampton. See you in a couple of weeks.
Cheers
Pete
Thurs 7th May Adelaide to Port Augusta
Fri 8th Port Augusta to Coober Pedy
Sat 9th Coober Pedy to Alice Springs
Sun 10th Alice Springs
Mon 11th Alice Springs to Glen Helen
Tues 12th Glen Helen to Tennant Creek
Wed 13th Tenant Creek to Cloncurry
Thurs 14th Cloncurry to Longreach
Fri 15th Longreach
Sat 16th Longreach, Emerald, Clermont
Sun 17th Clermont, Charters Towers, Townsville
Mon 18th Townsville to Cairns
Tues 19th Cairns
Wed 20th Cairns
Thurs 21st Cairns to Cooktown
Fri 22nd Cooktown
Sat 23rd Cooktown
Sun 24th Cooktown to Townsville
Mon 25th Townsville to Rockhampton
Tues 26th Rockhampton to Toowoomba
Wed 26th Toowoomba to Armidale
Thurs 28th Armidale Region
Fri 29th Armidale to Cobar
Sat 30th Cobar to Silverton
Sun 31st Silverton to Adelaide