Rec reg is easy and cheap, slap on a headlight, tailight, 1 mirror, chain guard and horn and your good to go. If you don't have a charge coil on your motor just hide a battery under the seat for inspection. You ccould get together with a few mate's and buy he gear and swap it from bike to bike for inspection to save costs, but I'd just get cheap ching gear off evilbay, rules say you just have to have lights, horn, etc doesnt say they have to be quality or effective. Only costs about 100 a year and even if your unlicensed your fines will be half of what it is when unregistered. There are plenty of state forests you can legally ride with rec reg, if you don't know where to find them get a book called weekend warriors (20 bux from memory, but was a few years ago now) it has 20 cool spots within an hour of Melbourne and the maps are awesome. My mate's and I have been riding spots from the book for years and never get bored. Or just get a Z50 and licence and terrorise the suburbs legally