Nice find swisscycle, does like near new. That rear brake is definitely unique and never seen anything like it before so couldn't really advise on how to replace that. The V brakes on both my mountain bikes work great and are dead simple. Lots of fender choices out there so it's really a matter of what look you want and your budget. The things I would replace are those pedals and the seat. I'm sure you can find a saddle way more comfortable than that and those pedals are great for shredding the calves
