Hey mate, you have to explain more as to how they got you. Where were you driving? What alcohol reading did you register? Was it a random breath test or a setup one?
Have a look over the notice they gave you. Look for any errors they may have done. I have gotten off a hindering charge because they used my dads licence number for indentification purpose (Ie sayin it was proof it was me). But i must say mate, with a dui, you will cop a loss of licence no matter what. There is no good behaviour agreement you can enter. That only applies to traffic infringements.
I've been done for two dui's myself, so been through it all. The first i was lucky and the judge saw my side and gave only a month ban, but that was because of guys tryin to take my rims off, so i moved it closer to the hotel door and got pinged. Was a trifling case, so thats why judge took sympathy. Best advise is to ring a lawyer and see what they have to say. If they reckon nothing you can do, then just cop it sweet mate and use the time to learn and even modify your car. Also only pay for a lawyer if you need it. No point they show up, cop the same sentence you would have on your own, then also have to fork out a grand for em.
Well any more questions just shoot, havent really read back on what i said, so probably is all mumbo jumbo