fuel injected or carbed? i can prob get my hands on a crossplane motor if thats what ur looking for but wont be cheap. 02-03 will be best bang for ur buck imo.

also does it have to be r1? or just any inline 4 liter motor. i got a cbr1000 that i just got running yesterday, i wouldnt be totally apposed to parting it if the motor is first thing to sell since its usually the hardest to sell cause of shipping.