You're welcome. And don't be too alarmed; I'm sure that the issue will be simple to resolve.

Your approach to the measurement is sound.

Regarding the cross-frame tension bars, try tapping them with a spanner or similar metal object. The should 'ring' and be similar in sound pitch; a dull sound will indicate the one or both is loose. I think you will understand what I mean.

A tyre fitting garage should have the measuring equipment necessary. The toe-out is not a particular concern unless it is associated with the extreme negative camber. I will try and take some photos of my car with the camber measurement in place if this will help you.

I would recommend somewhere around 0 to .25 deg negative best for road use.