Shorts or bibs up to you. You will find that owning just one set of gear means you are constantly washing before next ride. How many sets is up to you. Shorts/bibs will come in multi panels. The more panels the better the fit. 8-panel are not bad 10 would be better. Jerseys usually come with a from zipper and back pockets. Jerseys can become "addicting". Since I don't use the pockets I kind of prefer UNDER ARMOR. As you already know you work up a good sweat and the UA wicks away very well. GF insists on jerseys for group rides so whatever. Just ride and enjoy.