1990 120 clutch kits

regarding the 190mm clutches were there only one of these types? ie any 190mm skoda clutch kit should fit a 1990 120 five speed

previously all the times i needed a clutch its been 180mm for the older rwds

reason i ask is one seller who had a 190mm said it wouldnt fit a mine

i have already taken out the clutch which is marked on it  'sachs type m 190'

i have temporarily plonked a rapid ric kit in it from a spare engine i had just to move it out the garage for a few days till one arrives

this one has alot more free play in it before the clutch rod hits the thrust arm, which is unexpected any reason for that? or the above question one of the reasons for that?

 thanks