Being sort of retired early gives me plenty of time for computers and cars, and I'm not racing to finish the car - it's there for when no-one wants to pay for my services -
http://www.tech-ops.co.uk/dvtraining.html - if anyone needs this sort of training (doubtful, I realise).
As for the wheels, I really wanted exactly - exactly! - these ones some months ago, and started a bit of a saga with North Hants Tyres, who really tried hard to get them for me, but it turned out that they are only made for 4x4s, and thus stick out a long way, and don't fit Sumos - that's unless your supplier can find another source. You do need the correct offsets, and certainly not ones which stick out a long way!