This is what I have for general opaque and transparent stereo viewing:
https://www.amazon.com/AmScope-SM-4TZ-144A-Professional-Trin...then I get this illuminator: https://www.amazon.com/AmScope-LED-6W-Powerful-Gooseneck-Ill... for top-down viewing, and it can be adjusted for bottom-up illumination.
Then you can buy samples- microscope slides, petri dishes and samples,f rom places like Carolina Biological.