I have the same manuals as you.
It must be another service manual, because when I was at dealer, they go to a server, find Vmax and year 2009 and open it for me and tell me to find it myself because I know where to look.
I see that name of file was 2009, so there must be another service manual.
In that service manual it is 47,4 - 48,0mm.
New friction plates are 30,5mm
Standard clutch plates are 2,0mm ( 7 x 2,0 = 14mm)
If you use thin plate 1,6mm for plate 1 & 2 (2 x 1,6mm = 3,2mm)
Then you get 47,7mm.
It is not possible to get it down to 46,1 if you follow manual.
Thats why I go to dealer to ask about this.
All clutch part I check are the same for 2009 and 2017, so it has to be the same specification also.
If you change plate 3, 4, 5 & 6 to 1,6mm you will get 46,1 but I think you will get problem with slipping as well.