I did it last year,
I used all NEW parts, and it worked out heaps dearer doing it that way, you can buy new bikes for like $700, but in parts itll work out more,
Its all the little things that just keep adding up!!!
Frame $70
Swingarm $50
Engine $300
Bars $80
Front end $120
Rear shock $80
Wiring loom $45
Tank $40
Plastics $35
Wheels + tyres $200
Sprockets $50
Chain $40
Throttle $45
Levers $50
Seat $45
Carby $50
Brakes (2) $85
Chain guard $25
CDI $20
Kill switch $20
theres $1450 already, and thats using NEW but basic stuff,
whereas you can get a PP140 for like $700 now!
Cheers