The 2 outer rails used 5x each of the smaller type brackets, the brackets are handed so 5x RH and 5x LH the 2x larger brackets were use on the 2 inner rails at the front they are different due to the type of cross member they bolt on to, I used two smaller brackets at the very rear of the inner rails 1x LH 1x RH the 5x remaining bolts on each of the inner rails do not require reinforcing brackets as the cross members on the T6 are already strengthened in those positions hope that makes sense?
The brackets listed by
@andythom188 are the ones I used except the 7H0802369 Im guessing these maybe used in some places I have used the small RH & LH brackets that dont require the bracket to be shaped to sit over the seams?