UPDATE:

I have had the SSL conversion completed along with the brake bars.
I took my wife with me to collect the car, albeit a terrible cold windy damp day two weeks ago. It was a trial of a journey by train and country bus, stopping every two miles along twisty country roads and bitterly cold. No opportunity for refreshments anywhere thanks to covid restrictions and so she was in a really brilliant mood after we had walked the final distance to the workshop, fighting against the arctic winds which adjusted her carefully coiffed hair at no extra charge. The journey there took 3 hours although as the crow flies its only 50 miles.
And so it was, with great trepidation we set off, hood up ( first time with hood up for her ) and heater on full, out into the bleak countryside.
I wanted to avoid motorways and dual carriageways so as to evaluate the new suspension, therefore the only alternative route was along poorly maintained A roads that are mainly used by HGV's that rejoiced in drowning this little red car every time one passed in the opposite direction.
I didn't speak all the way home, dreading the tirade I was sure was building up, to be released in full fury when we arrived.

And so as we entered the house I turned round and with quavering voice dared to ask if she thought the ride was any better than before, I automatically ducked at that point as she was passing the knife rack, but my mind just couldn't compute when she said " It's a pity the weather wasn't better than it was today, we maybe could have had the roof down, as the ride was so much smoother and I didn't realise that the heater would be so good", with that she just walked away and suggested I wash the car before putting it away.

So yes gentlemen, the modifications have been a great success the most surprising element being that the steering is so much easier at low speed. New King Pins and bushes were fitted at the same time and the Lazer tracking resulted in an adjustment being made from 1.5 toe out to 0.5 toe in. The damper settings were made as soft as possible to avoid rear axle bottoming , maybe consider fitting a bump stop.
It would be nice to consider fitting the rear conversion as well if the results were to be as remarkable as the front, but the cost is prohibitive.
Also found the cushion advertised on line and bought one at £40, that's yet to be trialled.