I wouild say forget it, ur gov don't like that idea. These bike resembles Honda GL family in Indonesia & always w/ on-road equiment. Chinese often call this shape as "五羊款" as Wuyang build it by CKD Honda parts in old days.
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If u could find someone built to ur spec w/o on road equirment, u may get it throgh https://www.infrastructure.gov.au/ve...ns/orneao.aspx