Steering rack suggestions

[woodsmith]

In roughing out the dimensions for my electric trike I am using many of the MGB front suspension components.

However, I want to make the track wider and so the wishbones are being pushed outboard a bit further to increase the track from 1250mm to 1450mm.

This means I will need a rack that is around 760mm wide from inner ball joint to inner ball joint.

Any suggestions as to what cheaply available donor rack I can use please?

It will need to be a RHD front rack or a LHD rear rack turned over.
I'd prefer a manual rack though a PS rack could be utilised at a push, with an MR2 electric pump, and it will need to be able to fit the MGB steering arms.

Thank you.