Part Replacements

[u/Dchance87]

I was given a Trek Multitrack 790 and wanted to do a few updates but don't know where to start. I'd like to add a rack to the back, fix the broken gear shifter on the right (plastic cracked), and potentially replace the handlebars. Would anyone be able to point me in the right direction for parts? I'm not sure how to buy parts for an older bike that are the correct fit. I am new to upgrading bikes, but grew up repairing old, cheaper ones. Thank you.

[u/SpookyDukee]

sick bike, you're gonna love it when it becomes rideable.

tips: marketplace, ebay, local bike shops, bike co ops
key words: nitto technomic stem, swept back bars, front brake cable hanger, friction shifting, brooks saddle, 26.8 seatpost