Flying
Hi,
These are all the requirements for your course. All of these can be done in Orlando.
So you don't have to do any flying in the UK first. You will need to give yourself at least 6 weeks to do this course, As there is a lot to do.
You might find it worth while doing a few hours in the UK to give you some idea of what to expect when you go over to the USA.
You may have to get your medical before going out.
Good luck
Colin