DUCATI 900 MONSTER 20000 Inspection

Jau now I am close to the (allegedly) expensive 20 000 inspection. my question is no : what costs such an Inspek.? what can it cost at most ? and what is done at all ? I can’t control this as Duc. borrow at all. And, someone knows a good (may be quite cheap) Duc. Schrauber near Hanover. Thank you for answers. Ps. “Monster driving is the hammer and beats everything I’ve driven so far! just makes fun”