Handlebars riser install questions, please

This is reference my 2016 Speed Triple S.

I am installing a set of SWMOTO risers. These came without instructions :-(.
Would anyone have access to proper torque settings and is there a suggested pattern or order of tightening these longer bolts?

The bike currently has a one piece top clamp but the risers came with individual top clamps. Are there any pros or cons as to using the original one piece?

Thanks for any facts or speculation.

CHEERS,

Chris

PS I did cross post in the technical sub forum hoping for wider coverage as I'd like to get this done.