Skid steer buckets, forks, Etc. should fit.
I have the Kioti quick attach on my DK 35 ( they maybe the same QA that was used on the 45's). The buckets and forks from our skid steers at work fit on my tractor OK.
Skid steer powered attachments like post hole diggers, power brooms, Etc. likely need more hydraulic flow to operate correctly than your tractor pump supplys.