Though I've thought long and hard about doing this conversion, I've bought an ST220.

So despite having all the parts on shrink wrapped on a Europallet for the conversion on the Sierra, I've spent a few thousand over Christmas re-doing the Sierra and with that will keep it as 'Factory'.

Goes for a full respray in the Balkans in June so looking forward to its final piece of the puzzle getting finished then. Into storage it will go then.

Will hold on to the ST170 Conversion for the next while and see if it garners any interest by other parties down the road when these parts (complete conversions) become far and few between.

Think this thread could be closed.