So I have this old rigid MTB from 1999 that I commute on, and I am not sure how much longer it will last me. Looking around at new bikes, I have a really hard time finding an equivalent. I ride on 26x1.75 Panaracer and really like that set-up, also I have 26s studded tires, so I like to have 26 wheel size.
Most new bikes that are somewhat similar to my old one come with 700s wheels, which would mean I couldn't use the studded tires. Besides that the 1.75 width is hard to come by on 700 tires.

Modern MTB seem to come all with front suspension, which I don't really care for.

With my old bike, I am just waiting for my frame to break, and I guess that would be that.

I have a back-up bike with 700x35 tires and on the roads I use, the ride is just really harsh.

Any ideas?