My GSi, (corsa_evn)

[vizier]

U won’t need a spacer with a F25, those are only needed with an F28

U can alter the gearstick so it will be bottom right for the reverse of the f25, just disassemble it and ul see how
Its easy
Then get a vectra gearknob from the breakers so the gear pattern ads up

Best of luck with the conversion, keep us posted