I've got a bare long block 427 LS3 with the 58 tooth reluctor wheel. I'm trying to decide what is the best (or maybe cost effective) path to take.

The RX7 already has a throttle pedal that has a cable that works for cable driven throttle bodies. I think I would like to stay with a cable setup (unless there's some compelling reasons not too). I understand that to switch from DBW to Cable, the wiring harness will need to be modified by adding TPS and IAC connectors and removing the DBW Throttle Body connector.

Is the rest easily handled by the tuner?
Is this just a flash change?

I'm looking for suggestions where to purchase the wiring harness & ecm. I didn't see on Painless a specific harness for a cable driven conversion. I'm pretty sure this has been done before.

Or should I forget the whole idea and just go with DBW and get a new throttle pedal and slightly more costly TB.

*awaits BADLS1 reply*