Back in the day we would make bigger prints than that from 35mm, but the standard practice was to make an inter negative first, 8x10. Did some sports pics for a newspaper lobby that were 12 feet tall. Viewing distance is everything. This was at a commercial lab. I think that is the true value of analog, even when it "breaks down" (grainy etc) it often does so in a beautiful way. When you reach the limit of a digital file the break down is much less attractive. In my opinion of course.