The Multitrack is a solid choice in spite of the rim brakes and thread I shared will definitely give you ideas what people do with them. I'm rebuilding my curb find 730 Multitrack (FSA crank, Microshift Centos/5700 derailleurs, 11-34 cassette, 105 5501 hubs/Mavic MA3 hoops/Alivio brakes) that you might appreciate.
https://www.bikeforums.net/classic-v...n-wettrek.html