next day, i installed the transmission that got new
Clutch Release Lever
Retaining Spring Clamp for Clutch Release Lever
Ball Pin for Clutch Release Lever
Throw Out Bearing Guide Tube
and rubber o ring (for clutch guide sleeve)
greased the needed parts and installed the transmission.
the transmission jack i got from HF, helped a lot, since it can be adjusted to any direction. i had to turn the engine bit by bit to get the flywheel to align with the transmission shaft, but after all it wasn't that bad, and i was able to drive it in myself.
i installed the transmission bolts and used them to drive the transmission for the remaining 1 cm gap.