I think that I have decided....

I was ready to decide that regen and sepex were too hard. Looking at the prices of a series motor and controller however, it seems that it would actually be cheaper to buy two D&D motors and two sevcon powerpak controllers.

I will try to figure out how I can put one motor geared directly to each front driveshaft.

Challenges seem to be:

1. How to get the two controllers to speak to each other.
2. What are the motor curves for the motor?
3. How do I do the gearing - toothed belt would be nice but motorbike chain may be more realistic and easier to adjust.
4. how do I mount the shaft with the gear on to the driveshaft?
5. how do I mount a gear onto the motor drive shaft?
6. what is the appropriate fixed gearing?

sourcing controller

here is the page from the manufacturer

http://www.clevelandelectronicservices.com/index.php?option=com_content&view=article&id=53&Itemid=64

I can get the controller from thunderstruck ev in the us for US$625 + shipping

http://www.thunderstruck-ev.com/controllers.htm

or from cleveland electric in australia (need to enquire about price)

http://www.clevelandelectronicservices.com/index.php?option=com_content&view=article&id=53&Itemid=64

sourcing motors

I can get the controller from thunderstruck ev in the us for US$650 or US$750 + shipping

http://www.thunderstruck-ev.com/ddmotor.htm