The first problem you'll find is that the Monster and Streetfighter both have fat-bars, so you'll need to get new risers unless you already have the FT bars, which are supplied with new risers.
Once that issue is sorted, you may have problems with the front brake line (or rather, the union with the reservoir) fouling on your speedo, since the monster bars are a good deal narrower than FT or standard bars. You'll probably want to re-route the line also.
With that sorted, you may find re-routing the clutch cable is necessary as the bend will be quite sharp with the standard routing.
The pic below is of a Scram (not mine) with Renthal Ultra Low bars fitted. They're roughly the same width as Monster bars, but a touch higher I think. Given how close the front brake union is to his speedo, I'm not actually sure that the Monster bars would fit at all.
bm
View attachment 3442