Mount Bowen tips and hints

Hi guys and gals, we are headed off up to Hinchinbrook island next week to walk the Thorsborne trail, we have a pass to climb Bowen next, just wondering if anyone has been up recently and can offer and tips or advice, or can help with answers to the following questions we have?
• Does anyone know where one can buy a copy of the topo map for the Thorsburne trail (Hillock point 1:50,000), the Rainforest and Reef info centre has sold out and will not be getting them in for another ten days?
• We have heard rumour of a possible campsite approx 3 hours up Warrawilla creek which can be camped at instead of Little Ramsay bay on the first night to make the climb up Bowen a little more relaxing, can anyone confirm or deny this? Or is it better just to camp at the saddle?
• How high do the rats get? We are hoping to ditch our main packs at the saddle and pick them up on the way down after our summit bid, is this a good idea or will the rats get’em?
Any other hot tips, re: water location and the route gratefully received
• Does anyone know where one can buy a copy of the topo map for the Thorsburne trail (Hillock point 1:50,000), the Rainforest and Reef info centre has sold out and will not be getting them in for another ten days?
• We have heard rumour of a possible campsite approx 3 hours up Warrawilla creek which can be camped at instead of Little Ramsay bay on the first night to make the climb up Bowen a little more relaxing, can anyone confirm or deny this? Or is it better just to camp at the saddle?
• How high do the rats get? We are hoping to ditch our main packs at the saddle and pick them up on the way down after our summit bid, is this a good idea or will the rats get’em?
Any other hot tips, re: water location and the route gratefully received
