I recently fell into a 97 Klein Stage with near 0 miles. (Sorry can’t post pics - too new to the forum.) I had my LBS check it over and put on new handlebars to allow me to sit a little more upright (I’m 62 with a repaired back). I love the ride, but it came with a low end Shimano set and I would like to upgrade to something with hydraulic brakes and a 2x11 instead of 3x8. Is the Shimano 105 r7025 (I have small hands) a good choice? Other thoughts on group set options?

Thanks in advance for any thoughts and opinions.
Rich