Wow, I've really thrown the cat amongst the pigeons here eh!
I'm very aware that low mileage examples are getting pretty rare. Given that I only do a handful of miles a year, mine should stay that way for some time, most 10yr old cars over here only have about 30k miles on.
I guess a call to Olly is going to be in order today to clear a few things up. I know there are other options, charging, tuning etc, but all of these would require changing the ecu about too, so if I can do it for that, I can do it for an engine change!
Adding a piggyback to control fuelling and road tune is a suprisingly cheap and accurate way of doing things if required. I've done it to a few jap cars int he past.
I'm no just gonna give up on this, I'm going to carry on doing the research, speak to Olly, and report back on the progress so everyone knows the answers. If the only way to find out is to try then so be it!
If it doesn't work, I can just swap back and sell the motor on!
James