Regarding points 1,2 and 3. (Which you have separated and quoted simultaneously so I will answer all 3 with a single reply .
1.
I never said it was an R2 test did i?
R2 was mentioned as it is going to be more practical and convenient for the verification of the main bond in the future,and when installing equipment you should do so with due consideration for the cost,maintenance and convenience of the client. Therefore bond it inside and yes it definitely does make a difference if it's in or out. Installation work is primarily for safety and convenience and you should bear this in mind at all times.