Thanks Doddy and JazzCNC

Updated sheet to reflect your suggestions plus factored in 25% (VAT plus import fees) increase on imported items.....And indeed we seem to be hovering around £2,500 now, though with no attempt to push back much at this stage and I agree it is a well spec-ed machine.. I posted the link to GSheet as I couldn't work out how to post a table, but now it is a live tally of information accumulated in this thread.

Advice on sourcing from China noted and Fred at BST Motion had come up often enough here to know he is the go-to guy. When the time is right I will bother him for a full quote.(and hopefully trim the budget)

I have least understanding of the Electrics/Electronics (as you can tell from my first attempt at parts), but assume if I have sufficient budget, spec good components and take my time and the advice of this forum I will get through OK. Having sense checked the budget (growing but not out of control...yet), I am now focused again on generating a mechanical design I am confident I can make.....and as Jazz indicated it is all about getting the details right! Fusion 360 is your friend when you can get it to do your bidding! I've used it a lot for furniture design but importing parts and positioning and joining is new so on a bit of a leaning curve there.

So Jazz..what does that orange beauty look like from behind?