I now have a recommended build sequence from Gardner Douglas. This is a spreadsheet, so I can work out the staged payments required if I follow the build schedule and use the GD costs. It will help me work out what to order at day 1.
I am fairly certain that I will go for an LS6 engine, although as yet I am still not sure on the specification of this unit. As I have said before, I am not totally clear either on which gearbox to go for yet, but I guess budget will play a big part.
I now realise that I will need to watch the budget, as it will be easy to go mad with the spend and specification.