Hi Thom
Converting your Toyota should be considered as "practice" for the MG - conversions are never "quick and cheap" -
The basic ratio is that if you can do it all yourself then a conversion will be half as good as a second hand Leaf and cost twice as much
If you have to pay people then twice as expensive as a brand new Tesla and half as good as a second hand Leaf
Its much more like "Hot Rodding" than anything else
Great for the MG
Not so much for the Toyota