If you use a microscope objective designed for a 160mm tube length then the only difference is in the optics module.
If you use an infinity corrected objective then the optics module is longer and you will need the taller version of the microscope stand (the optics module for infinity corrected objectives and the tall stand are both in the customisations and alternatives pages). The body, illumination, actuators etc are all the same.
Just a note here, as for the recent thread from @Yashka, the v7.0.0-beta1 released version is behind on a number of recent improvements. There are some actual bugs, noted in the release thread Openflexure Microscope V7.0.0-beta1 released. Particularly the lens spacer for low cost optics is wrong in v7.0.0-beta1, and there have been major changes in the electronics drawer and microscope stand to accommodate the motor controller Sangaboard v0.5 which was not originally envisaged for v7.0.0.
We do not have a ‘daily build’ link. Currently Assembly Instructions (openflexure.gitlab.io) will give the latest parts and instructions, but it will only be available for five days from now (a week after it was created).