Hi Mate
Where in australia are you?
pre-mix is fine
Check if wire splice is done to delimit it or get hrc loom
They are a great bike the main problem they have is the power valves can get cloged up and blows the pgm.
There is great info on this site just look through.
Parts here can be a pain postage from tyga can be high .I get most parts from japan auctions or here in clasifieds guys on here are a great help.