if your mechanic is asking such questions,
he/she is probably not very familiar with S-H company functioning system.
There is no problem to get full kit of parts necessary to install such additional equipment, if official SB/TN exists for it (and this is the case). Pls specify your S/N and expect delivery time 3+ weeks and price 1000+ E from nearest S-H dealer (release TOST mechanism not included). I am just considering the same for my Ventus...