I can't speak for the Montero but in the US Mitsubishi dropped the manual transmission option completely on the Montero Sport in 2000. Prior to that ('97-'99) the only option for the 3.5L was an automatic. During the time they were making the Sport with the manual transmission they only sold a relative handful so they're vary rare in the US.

Edward

'97 Montero Sport LS 5-Speed 3.5L conversion
SAS Dana 44s & ARBs, 35" Yoko Geolandar M/Ts
NP231 B4R doubler/Terra Low231/RP 5.38 229:1
'99 Montero Sport Limited 4WD SAS 3-link project
'03 Montero Sport Limited AWD
'97 Montero Sport LS 5-Speed 4WD