Which stock radial master do I buy?

[stopintime]

Going from a 16 mm coffin to a radial master - probably soon.
(320, 4 piston, 2 pads, two pins)

Piecing together an aftermarket solution seems to be as expensive as buying a bolt-on Ducati package.
(reservoir, -bracket, hose, brake light switch and maybe a mirror mount + shipping, tax and fees)

Are all Ducati stock radial masters 19 x 18? (SBK, HM, SF, M1100)

StreetFighter and M1100 has the mirror mount. The other options require a mirror mount clamp, but I might be able to use
the one coming off my coffin master(?).