Hello Mick,
There is a FAQ on jacking points, which I am sure that someone will be along soon to locate for you.
On the top ball joint question. Do you have Ford Cortina cast iron front uprights? With the Westfield cycle wing joints and the Cortina uprights they need some material machining off the surface where the ball joint nut goes to allow for the cycle wing bracket thickness and to ensure that there is enough thread protruding for safety. It sounds like this wasn't done on your car. Two options are:
Get the uprights machined, removing 3/16" from the underside of the top mounting point. The build manual has details. The manual is available from several places on line, if you don't have a copy. My car had the machining done by the builder.
or,
Use Tiger wing stays. These locate on the three M8 holes that are in the upright and on the original car were used to hold a brake dust shield.
Hope this helps.
Jen