Hi Champs,
I'm going thru the same process. I think an aluminum trailer is the go. I had a look at a Dunbier yesterdsy and was pretty impressed. I emailed a crowd at Maroochydore and waiting till Monday to hear from them. There is another mob at Maroochydore called Tubeseek Ph 0413464376 whom I will call on Monday. I think alloy is the go as the steel trailer will give problems in years to come.
Duck