efi converson on 81 kz1000m1 j motor?

so this is one thing that i have been kicking around for the last couple of weeks for my 81 M1. through some research, i've been finding a lot of people have been recommending gpz1100 setups. how involved am i looking to get with this aside from a pump, harness, tbi throttle body setup, ecu and 02 sensor(s)? are there kits out there that are not ignition timing dependent?

Do a search. There is an ongoing post about the subject.

You would need a complete '82/'83/'84 Gpz1100 to cannibalize for parts.

You'd need the following(might have forgot some):
1. EFI computer.
2. Fuel pump.
3. EFI Injectors.
4. Fuel pump filter.
5. Air temperature sensor.
6. Engine temperature sensor.
7. Throttle position sensor.
8. Related wiring harness, from computer, to sensors & injectors
9. At least 35 PSI rated fuel lines from output side of pump.