Would have thought you would need the ECU messed with so it wont run in limp mode?
ha! 'messed with' I think that's understating it.
You can get around a lot of issues by giving the ECU 'what it wants to see' from the sensors, if you don't want to include them, but the problem is that you need to do pretty much all of them, including things like speed sensors etc, which can't be missed out.
DannyP has been working on one of these for a while.
IIRC the ECU has 150 wires that terminate at it.
It's a great potential conversion, but a lot of work!